# CD45

> English word · Noun

## Definitions
1. enzyme involved in the regulation of signal transduction in hematopoiesis; used histologically to differentiate between lymphomas and carcinomas

## Etymology
from cluster of differentiation

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/cd45