# Fc receptor

> English word · Noun

## Definitions
1. A protein found on the surface of certain immune and blood cells that binds to antibodies attached to infected cells or invading pathogens, enabling antibody-mediated phagocytosis or antibody-dependent cell-mediated cytotoxicity (ADCC).

## Etymology
From its binding specificity for the constant part of antibodies known as the fragment crystallizable (Fc) region.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/fc-receptor