# mast cell

> English word · Noun

## Definitions
1. A resident cell of connective tissue that contains many granules rich in histamine and heparin.

## Etymology
From German Mastzelle f, "feeding cell," coined in 1878 by immunologist Paul Ehrlich.

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