Dust

Cryptocurrency dust are fractional values from a unit of cryptocurrency. Such small means are usually impossible to trade because they are less than transactional fees. Being below the minimum trading limit, they usually stand idle in user wallets. Hence, the term «crypto dust». You can’t use it, until the balance of the wallet is replenished. The more wallets and tokens you have, the bigger the size of crypto dust.

Dollar-Cost Averaging (DCA)

Dollar cost averaging (DCA) is an investment strategy that aims to reduce the impact of volatility on large purchases of financial assets such as equities. By dividing the total sum to be invested in the market (e.g., $100,000) into equal amounts put into the market at regular intervals (e.g., $1,000 per week over 100 weeks), DCA seeks to reduce the risk of incurring a substantial loss resulting from investing the entire lump sum just before a fall in the market. Dollar cost averaging is not always the most profitable way to invest a large sum, but it is alleged to minimize downside risk. The technique is said to work in markets undergoing temporary declines because it exposes only part of the total sum to the decline. The technique is so called because of its potential for reducing the average cost of shares bought. As the number of shares that can be bought for a fixed amount of money varies inversely with their price, DCA effectively leads to more shares being purchased when their price is low and fewer when they are expensive. As a result, DCA possibly can lower the total average cost per share of the investment, giving the investor a lower overall cost for the shares purchased over time.

Decentralized Exchange (DEX)

Decentralized exchanges (DEX) are a type of cryptocurrency exchange which allows for direct peer-to-peer cryptocurrency transactions to take place online securely and without the need for an intermediary. In transactions made through decentralized exchanges, the typical third party entities which would normally oversee the security and transfer of assets (e.g. banks, stockbrokers, online payment gateways, government institutions, etc.) are substituted for a blockchain or distributed ledger.

Deterministic Wallet

A deterministic wallet is a system of deriving keys from a single starting point known as a seed. The seed allows a user to easily back up and restore a wallet without needing any other information and can in some cases allow the creation of public addresses without the knowledge of the private key. Seeds are typically serialized into human-readable words in a Seed phrase.

Deflation

In economics, deflation is a decrease in the general price level of goods and services. Deflation occurs when the inflation rate falls below 0% (a negative inflation rate). Inflation reduces the value of currency over time, but sudden deflation increases it. This allows more goods and services to be bought than before with the same amount of currency.

dApp

A decentralized application (DApp, dApp, Dapp, or dapp) is a computer application that runs on a distributed computing system. DApps have been popularized by distributed ledger technologies (DLT) such as the Ethereum Blockchain, where DApps are often referred to as smart contracts.

DAO

The DAO (stylized Đ) was a digital decentralized autonomous organization, and a form of investor-directed venture capital fund. It launched in April 2016 after a crowdfunding campaign. By September 2016, it was delisted and had, in effect, become defunct. The DAO had an objective to provide a new decentralized business model for organizing both commercial and non-profit enterprises. It was instantiated on the Ethereum blockchain, and had no conventional management structure or board of directors. The code of the DAO is open-source. The DAO was stateless, and not tied to any particular nation state.

Distributed Ledger

A distributed ledger (also called a shared ledger, or referred to as distributed ledger technology) is a consensus of replicated, shared, and synchronized digital data geographically spread across multiple sites, countries, or institutions. There is no central administrator or centralised data storage. A peer-to-peer network is required as well as consensus algorithms to ensure replication across nodes is undertaken.

Distributed Denial of Service (DDoS) Attack

In computing, a denial-of-service attack (DoS attack) is a cyber-attack in which the perpetrator seeks to make a machine or network resource unavailable to its intended users by temporarily or indefinitely disrupting services of a host connected to the Internet. Denial of service is typically accomplished by flooding the targeted machine or resource with superfluous requests in an attempt to overload systems and prevent some or all legitimate requests from being fulfilled.

Digital Signature

A digital signature is a mathematical scheme for verifying the authenticity of digital messages or documents. A valid digital signature, where the prerequisites are satisfied, gives a recipient very strong reason to believe that the message was created by a known sender (authentication), and that the message was not altered in transit (integrity). Digital signatures are a standard element of most cryptographic protocol suites, and are commonly used for software distribution, financial transactions, contract management software, and in other cases where it is important to detect forgery or tampering.