# CD38

> English word · Noun

## Definitions
1. glycoprotein found on the surface of many immune cells (white blood cells), including CD4+, CD8+, B lymphocytes and natural killer cells, functioning in cell adhesion, signal transduction and calcium signaling

## 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/cd38