Glossaire
Glossaire Crypto : Définitions Essentielles Cryptomonnaie & Blockchain
Naviguez dans le monde complexe de la cryptomonnaie avec notre glossaire A-Z. Des bases du Bitcoin aux concepts avancés DeFi.
- 134 termes
- De A à Z, avec des exemples
- Mis à jour le 13 octobre 2026
- En anglais, en français et en espagnol
Ce glossaire crypto définit les termes clés des cryptomonnaies, des bases du Bitcoin aux concepts avancés de DeFi. Que vous recherchiez la technologie blockchain, évaluiez des actifs numériques ou exploriez les protocoles de finance décentralisée, notre dictionnaire crypto complet fournit des définitions claires et précises pour plus de 200 termes essentiels.
Conçu pour les débutants qui commencent leur parcours crypto, les investisseurs analysant les opportunités du marché, les traders actifs naviguant sur les exchanges, et les développeurs construisant des applications Web3. Chaque définition de ce glossaire blockchain décompose les concepts complexes en explications accessibles tout en maintenant la précision technique.
Mis à jour en novembre 2025 avec la dernière terminologie crypto incluant RWA (Real World Assets), les mécanismes de restaking, les écosystèmes de memecoins et les solutions de scaling L2. Notre dictionnaire de termes crypto est continuellement mis à jour pour refléter l'évolution du paysage blockchain.
Termes Clés
Glossaire complet des termes en cryptomonnaie, blockchain et trading. Définitions essentielles pour débutants et experts.
Chiffres et symboles 1 terme
-
51% Attack
Controlling majority of network hash power to rewrite blockchain history
A 9 termes
-
Airdrop
Free distribution of tokens to wallet addresses
-
Altcoin
Any cryptocurrency other than Bitcoin
-
AML
Anti-Money Laundering regulations preventing illegal fund flows
-
AMM
Automated Market Maker, protocol that enables decentralized trading
-
APR
The APR (Annual Percentage Rate) is the simple rate of return you can expect to earn on your crypto assets over a period of one year.
-
APY
The APY (Annual Percentage Yield) is the total rate of return you can earn on your crypto over a year because it includes the effect of compounding.
-
ASIC Miner
Application-Specific Integrated Circuit designed solely for mining crypto
-
ATH
All-Time High, the highest price a cryptocurrency has ever reached
-
Atomic Swap
Direct cryptocurrency exchange between different blockchains
B 10 termes
-
Bag Holder
Someone holding cryptocurrency that has lost significant value
-
Bear Market
Extended period of declining cryptocurrency prices
-
Block Height
The Block Height is the total number of blocks that have been successfully added to the blockchain since the very first one (Genesis Block).
-
Block Reward
The Block Reward is the cryptocurrency prize that a miner or a validator receives for successfully creating and adding a new, valid block of transactions to the blockchain.
-
Block Time
Average time between blocks being added to blockchain
-
Blockchain
A distributed ledger technology that records transactions in blocks linked chronologically and secured through cryptography
-
Bollinger Bands
Volatility indicator showing support and resistance levels
-
Bridge
Protocol connecting different blockchains
-
BTFD
The acronym BTFD (Buy The Fing Dip*) is a phrase used to encourage people to buy a cryptocurrency immediately after its price has dropped sharply.
-
Bull Run
Period of sustained upward price movement in crypto markets
C 8 termes
-
Candlestick Chart
Price chart showing open, high, low, and close values
-
Circulating Supply
Amount of cryptocurrency currently available
-
Cold Storage
Offline storage method for cryptocurrencies
-
Collateral
A Collateral is an asset, like cryptocurrency, that you lock up or pledge when you take out a loan from a DeFi protocol.
-
Composability
Composability is the idea that different DeFi protocols or applications can be easily stacked together like digital LEGO bricks to create new and more complex financial products.
-
Consensus Mechanism
The method by which a blockchain network agrees on the current state of the ledger
-
Cross-Chain
Ability to interact between different blockchains
-
Crypto Wallet
Software or hardware that stores private keys and enables cryptocurrency transactions
D 8 termes
-
DAO
Decentralized Autonomous Organization governed by token holders
-
DeFi
Decentralized Finance, financial services without traditional intermediaries
-
DEX
Decentralized Exchange operating without central authority
-
Diamond Hands
Holding crypto despite extreme volatility or losses
-
Difficulty Bomb
The Difficulty Bomb is a piece of code written into the Ethereum blockchain that gradually makes the process of Proof of Work mining exponentially harder.
-
Dominance
Percentage of total crypto market cap held by one coin
-
Double Spending
Attempting to spend the same cryptocurrency twice
-
DYOR
Do Your Own Research - fundamental rule in crypto investing
E 3 termes
F 8 termes
-
FA Token
An FA Token is a token standard used on the Tezos blockchain, which is the Tezos equivalent of the popular ERC-20 standard on Ethereum.
-
Fibonacci Retracement
Tool using horizontal lines to indicate support/resistance areas
-
Finney
Unit of Ether equal to 0.001 ETH
-
Flash Loan
Uncollateralized loan that must be repaid in the same transaction
-
FOMO
Fear of Missing Out, buying due to anxiety about missing profits
-
Fork
A change in blockchain protocol rules that creates a divergence from the original chain
-
FUD
Fear, Uncertainty, and Doubt spread to influence market sentiment
-
Fungibility
Fungibility describes an asset where every unit is identical and can be perfectly exchanged for any other unit of the same type.
G 4 termes
-
Gas Fee
Transaction fee paid to process operations on Ethereum
-
Genesis Block
The first block in a blockchain, hardcoded into the software
-
Governance Token
Token giving voting rights in protocol decisions
-
Gwei
Unit of measurement for Ethereum gas prices
H 7 termes
-
Halving
Event reducing block rewards by half
-
Hard Fork
A permanent divergence requiring all nodes to upgrade to the new protocol
-
Hardware Wallet
Physical device that stores private keys offline
-
Hash Function
Cryptographic algorithm that converts input data into a fixed-size alphanumeric string
-
Hash Rate
The computational power of a mining network measured in hashes per second
-
HODL
Crypto slang for holding cryptocurrency long-term despite volatility
-
Hot Wallet
A cryptocurrency wallet connected to the internet
I 3 termes
-
ICO
Initial Coin Offering, fundraising through token sales
-
IDO
Initial DEX Offering, token launch on decentralized exchange
-
Impermanent Loss
Temporary loss when providing liquidity due to price divergence
K 1 terme
-
KYC
Know Your Customer - identity verification required by exchanges
L 6 termes
-
Layer 0
A Layer 0 refers to the technology and infrastructure that lets different, separate blockchains work together.
-
Layer 1
A Layer 1 is the main, core blockchain network itself, like Bitcoin or Ethereum.
-
Layer 2
Secondary framework built on top of main blockchain
-
Liquidity Mining
Earning tokens by providing liquidity to a protocol
-
Liquidity Pool
Smart contract containing funds for decentralized trading
-
LP Token
An LP Token is a special receipt you get when you deposit two different cryptocurrencies into a Liquidity Pool on a decentralized exchange (DEX).
M 13 termes
-
MACD
Moving Average Convergence Divergence, trend-following momentum indicator
-
Mainnet
The primary public blockchain network
-
Market Cap
Total value of a cryptocurrencies circulating supply
-
Mempool
Pool of unconfirmed transactions waiting to be processed
-
Merkle Tree
A data structure used to efficiently verify transaction integrity in a block
-
Metaverse
Virtual worlds where blockchain enables true digital ownership
-
MEV
Maximal Extractable Value from transaction ordering
-
Mining
The process of validating transactions and creating new blocks through computational work
-
Mining Difficulty
The measure of how hard it is to mine a new block on a blockchain
-
Mining Pool
Groups of miners combining computational resources to share rewards
-
Mining Rig
Specialized computer hardware designed for cryptocurrency mining
-
Moving Average
Average price over a specific time period to identify trends
-
Multisig Wallet
Wallet requiring multiple signatures to authorize a transaction
N 5 termes
-
NFT
Non-Fungible Token, unique digital asset on blockchain
-
NGMI
The acronym NGMI (Not Gonna Make It) is a sarcastic or pessimistic term used to describe an investor or project that is expected to fail.
-
Node
A computer that maintains a copy of the blockchain and validates transactions
-
Non-Custodial Wallet
Wallet where only the user controls the private keys
-
Nonce
In Proof of Work mining, the Nonce is a random number that miners change over and over again to try and create the correct hash for a new block.
O 1 terme
-
Oracle
Service providing external data to smart contracts
P 7 termes
-
Paper Hands
A Paper Hand is a nickname for an investor who panics and sells their cryptocurrency at the first sign of a price drop, resulting in a loss or minimal profit.
-
Play-to-Earn
Gaming model where players earn cryptocurrency rewards
-
Private Key
Secret alphanumeric code that proves ownership of cryptocurrency
-
Proof of Stake (PoS)
Consensus mechanism where validators are chosen based on their stake
-
Proof of Work (PoW)
Consensus mechanism requiring miners to solve complex mathematical puzzles
-
Public Address
The shareable string where others can send you cryptocurrency
-
Pump and Dump
Manipulative scheme to inflate price then sell
R 7 termes
-
REKT
The slang term REKT means an investor has lost a huge amount of money due to a bad trade, a bad investment, or a security hack.
-
Resistance Level
Price point where selling pressure typically prevents further rise
-
Roadmap
Timeline of planned developments for a crypto project
-
Rollup
Layer 2 scaling solution bundling transactions
-
RSI
Relative Strength Index, momentum indicator measuring overbought/oversold conditions
-
Rug Pull
Scam where developers abandon project with investor funds
-
RWA
A Real-World Asset is a physical or traditional financial item, like property or stocks, that is put onto a blockchain as a digital token.
S 13 termes
-
Satoshi Nakamoto
Anonymous creator of Bitcoin and blockchain technology
-
Sats
Satoshis, smallest unit of Bitcoin (0.00000001 BTC)
-
Security Token
A Security Token is a digital asset that represents ownership in a real-world asset, like a share in a company or a piece of real estate.
-
Seed Phrase
A sequence of 12-24 words used to recover a cryptocurrency wallet
-
Sharding
Splitting blockchain into smaller pieces for scalability
-
Shill
To Shill a coin means to aggressively promote a cryptocurrency or NFT to others, usually because the promoter wants the price to rise for their own benefit.
-
Sidechain
Separate blockchain connected to main chain
-
Slippage
Difference between expected and actual transaction price
-
Smart Contract
Self-executing code on a blockchain that automatically enforces agreement terms
-
Soft Fork
A backward-compatible upgrade that doesnt require all nodes to update
-
Stablecoin
Cryptocurrency pegged to a stable asset like USD
-
Staking
Locking up cryptocurrency to support network operations and earn rewards in PoS systems
-
Support Level
Price point where buying pressure typically prevents further decline
T 7 termes
-
Testnet
Testing environment for blockchain development
-
Token Burn
Permanent removal of tokens from circulation
-
Token Gating
A Token Gate is a way for a website or service to restrict access to only people who hold a specific cryptocurrency or NFT in their wallet.
-
Tokenomics
Economic model and distribution of a cryptocurrency
-
Total Supply
Maximum amount of cryptocurrency that will exist
-
Trading Volume
Amount of cryptocurrency traded in a period
-
TVL
Total Value Locked, amount of assets staked in a DeFi protocol
U 1 terme
-
Utility Token
A Utility Token is a cryptocurrency that gives the holder access to a product or service within a specific decentralized network.
V 3 termes
-
Validator
A node that verifies and approves transactions in Proof of Stake networks
-
Validator Set
The Validator Set is the group of people or entities chosen to verify new transactions and create blocks in a Proof of Stake (PoS) system.
-
Volume Indicator
Measure of how much cryptocurrency is being traded
W 6 termes
-
Web3
Vision of decentralized internet built on blockchain technology
-
Web3 Wallet
Browser extension or app that interacts with decentralized applications
-
Wei
Smallest denomination of Ether
-
Whale
Individual or entity holding large amounts of cryptocurrency
-
Whitepaper
Technical document describing a crypto project
-
Wyckoff Method
Trading methodology analyzing supply and demand
Y 1 terme
-
Yield Farming
Earning rewards by providing liquidity to DeFi protocols
Z 2 termes
-
Zero-Knowledge Proof
Cryptographic method to prove information without revealing it
-
ZK-Rollup
A Zero-Knowledge Rollup is a high-speed scaling solution that processes thousands of transactions off the main blockchain.
Ressources Connexes
Questions
FAQ du Glossaire Crypto
Qu'est-ce qu'un glossaire crypto ?
Un glossaire crypto est un guide de référence complet qui définit la terminologie des cryptomonnaies et de la blockchain. Il aide les utilisateurs à comprendre les concepts techniques, les termes de trading et les protocoles DeFi en fournissant des définitions claires et précises du vocabulaire crypto essentiel.
Comment utiliser cette page de définitions du glossaire crypto ?
Parcourez les termes par ordre alphabétique avec la navigation A-Z, filtrez par catégorie (Bases, Trading, DeFi, Sécurité, Minage & Staking, NFTs & Gaming), ou utilisez la barre de recherche pour trouver des définitions spécifiques. Cliquez sur n'importe quel terme pour voir sa définition complète.
Ce glossaire couvre-t-il les termes Bitcoin et Ethereum ?
Oui, ce glossaire crypto inclut des définitions complètes pour les termes Bitcoin (halving, minage, UTXO, Lightning Network) et les concepts Ethereum (smart contracts, frais de gas, tokens ERC-20, proof of stake). La terminologie fondamentale et avancée est couverte.
Ces définitions sont-elles adaptées aux débutants ?
Absolument. Toutes les définitions sont rédigées en langage simple avec des explications accessibles. Les concepts blockchain complexes sont décomposés en termes faciles à comprendre tout en maintenant la précision technique pour les utilisateurs plus expérimentés.
Quand ce glossaire crypto a-t-il été mis à jour ?
Ce glossaire crypto a été mis à jour en novembre 2025, incluant la dernière terminologie comme RWA (Real World Assets), restaking, memecoins, solutions de scaling L2, et d'autres concepts émergents.
Puis-je suggérer de nouveaux termes ?
Oui ! Nous accueillons les suggestions de nouveaux termes crypto. Contactez-nous via notre site web ou nos réseaux sociaux. Notre équipe examine régulièrement les soumissions pour maintenir ce glossaire blockchain complet et actuel.