A liquidity pool is a collection of funds locked in a smart contract. Liquidity pools are used to facilitate decentralized trading, lending, and many more functions. Liquidity pools are the backbone of many decentralized exchanges (DEX), such as QuipuSwap on Tezos.
QuipuSwap
QuipuSwap is an open-source AMM protocol that provides an interface for the seamless exchange of Tezos tokens (DEX). The company behind this product is madfishofficial.