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  • Machine Learning (ML)

    An application of artificial intelligence (AI) that enables systems to automatically learn and improve from experience without being explicitly programmed. ML programs access data and learn patterns and make inferences.

  • Mainnet

    The main version of a blocckhain protocol that uses currency with real world value to transact. Most Crypto projects test and demonstrate the capabilities of their projects to investors and users in a safe environment called a “testnet.” A cryptocurrency is generally considered to be “live” after the first Mainnet block is mined.

  • Margin Call

    A demand by a broker or lender that an investor deposit further cash or assets to cover possible losses.

  • Margin Trading

    Using borrowed money to buy and sell assets. The practice includes buying an asset where the buyer pays only a percentage of the asset's value and borrows the rest from the bank or broker. The broker acts as a lender and the securities in the investor's account act as collateral.

  • Market Cap

    The total value of a cryptocurrency's supply. It is calculated by multiplying a currency's market price by the number of coins/tokens that have been issued.

  • Market Order

    A buy or sell order to be executed immediately at the current market prices. As long as there are willing sellers and buyers, market orders are filled. They are used when certainty of execution is a priority over the price of execution.

  • Masternode

    A device running the full software of a cryptocurrency that executes more tasks than a regular nodes. Masternodes play a more significant role in maintaining the network. Some blockchain networks may require an initial collateral to be staked in order to operate a masternode.

  • mBTC

    Sub-unit of Bitcoin: 1000 mBTC = 1 BTC.

  • Merged Mining

    The process of simultaneously mining two different cryptocurrencies that have the same consensus algorithm. Merged mining allows cryptocurrencies to increase the hashing power behind their network by bootstrapping off of larger networks.

  • Merkle Tree

    A data structure usedto en code blockchain data more efficiently and securely. Merkle Trees are used to allow users to verify a specific transaction without downloading the entire blockchain.

  • Metamask

    Chrome broswer extension that enables users to store and transact Ethereum and other ERC-20 tokens.

  • Micro-transaction

    Also known as micropayments, microtransactions are very small payment that are commonly used in blockchain-based content management and gaming projects.

  • Mining

    The process of adding transaction records (blocks) to a blockchain's ledger of past transactions. Miners confirm transactions and help maintain the network in exchange for block rewards.

  • Mining Pool

    A group of cryptocurrency miners that combine their computational resources over a network to increase their collective mining power. They split rewards evenly based on each person's mining contributions.

  • Mining Rig

    A computer used for mining cryptocurrencies. A rig can be a dedicated computer built and operated specifically for mining or it could also be used for other purposes.

  • Minting

    The process by which new coins are created on a Proof of Stake (PoS) blockchain to reward miners for verifying transactions and creating a new block.

  • Mixed Transactions

    Transactions that are combined by a third party to make them more secure and anonymous.

  • Mnemonic

    A pattern of letters, ideas, or words that assist in remembering something. Mnemonics are ommonly used to access accounts or wallets.

  • Mt. Gox

    Launched in July 2010, Mt. Gox was based in Tokyo, Japan. By 2013, it handled 70% of all bitcoin transactions worldwide. In 2014, 850,000 bitcoins, worth an estimated $450 million at the time, were stolen from the exchange, forcing the company to declare bankruptcy.

  • Multi-Layer Blockchain

    A blockchain network that uses a multilayered architecture to address technical problems related to low transaction rates and scalability. Multilayered blockchains often devote one layer to data storage, and a secondary layer to confirming transactions and other purposes.

  • Multisig

    Abbreviation for multi-signature. A feature that requires several keys to authorize a single transaction. Multisig wallets and other tools are used to avoid a single point of failure and for dividing responsibility among separate parties.

  • MyEtherWallet

    A popular online wallet service that supports Ether and a large variety of ERC20 tokens.