Web3 Glossary
Reference vocabulary for Protocol Signal's editorial coverage. Every term links to the protocols, comparisons, and intelligence feeds where it appears — definition to live analysis in one click.
This glossary defines the infrastructure vocabulary behind Protocol Signal's coverage — the terms that recur across perpetual DEXs, bridges, aggregators, and yield protocols. Each definition is written in plain English first, then linked to the protocols, comparisons, and intelligence feeds where the concept appears, so you can move from "what does this mean" to "which tools does it affect" in a single click.
The entries are organized by category rather than alphabetically, because the terms cluster naturally: trading mechanics (funding rate, liquidation, maker/taker), routing and execution (MEV, slippage, intents), cross-chain concepts (canonical bridge, wrapped asset, withdrawal delay), and security primitives. Reading a category top to bottom is a fast way to build the mental model for that part of the stack.
We prioritize accuracy over completeness: every definition reflects how the term is actually used in current protocol design, not a dictionary abstraction. Where a term has competing definitions or a common misconception, the entry says so. New terms are added as our coverage expands and as the space introduces new primitives.
DEX & Trading
Perpetual DEX
A decentralized exchange that trades perpetual futures contracts with no expiry date, kept aligned with spot via a funding rate.
Funding Rate
A periodic payment between long and short perpetual holders that keeps the perp price anchored to spot.
CLOB (Central Limit Order Book)
An exchange model where bids and asks are matched in a price-time priority order book, like a traditional exchange.
AMM (Automated Market Maker)
A DEX model where prices are set algorithmically against a liquidity pool, not an order book.
Maintenance Margin
The minimum collateral percentage required to keep a leveraged position open.
Open Interest
Total notional value of unsettled perpetual contracts outstanding on a venue.
Liquidity Pool
A smart contract holding two or more assets that traders swap against, with LP shares minted to depositors.
Bridges & Cross-Chain
Cross-Chain Bridge
Infrastructure that moves value or messages between two blockchains with distinct consensus mechanisms.
Intent-Based Bridge
A bridge model where users sign a desired outcome and competing solvers fill it on the destination chain.
Liquidity Bridge
A bridge that holds pooled inventory on both sides and swaps source-chain deposits for destination-chain assets.
Canonical Bridge
The official native bridge of an L2 or sidechain, inheriting full security from the parent chain.
Withdrawal Delay
The waiting period for canonical L2-to-L1 withdrawals — typically 7 days on optimistic rollups.
Aggregation & Routing
Bridge Aggregator
A router that quotes across multiple bridges and selects the best path by price, speed, or reliability.
Swap Aggregator
A router that splits a swap across multiple DEXs to find the best effective price.
DEX Aggregator
Synonym for swap aggregator — a router across multiple DEX venues.
RFQ (Request for Quote)
A trading model where market makers respond to a user's quote request with a firm price.
Security & Risk
Liquidation
Forced closure of a leveraged position when collateral falls below the maintenance margin.
MEV (Maximal Extractable Value)
Value that block producers or sophisticated searchers can extract by reordering, inserting, or censoring transactions.
Private Mempool
A transaction routing layer that hides pending transactions from public observation until inclusion.
Smart Contract Risk
The risk that a bug, exploit, or upgrade in a protocol's code causes user funds to be lost or stolen.
Fees & Economics
Infrastructure
Frequently Asked Questions
How is this glossary different from a generic crypto dictionary?
Every term is tied to live coverage — the protocols, comparisons, and intelligence feeds where it actually appears — so definitions connect to real tools and decisions rather than standing alone. It focuses on the infrastructure terminology relevant to DeFi execution, not the entire crypto lexicon.
How are the terms organized?
By category — trading mechanics, routing and execution, cross-chain concepts, and security primitives — so related ideas sit together. Reading a category in order builds the model for that part of the stack faster than alphabetical browsing.
How often is the glossary updated?
Terms are added and revised as our coverage grows and as the space introduces new primitives. Each linked protocol and comparison page carries its own last-updated date.