# calcein

> English word · Noun

## Definitions
1. A fluorescent dye, with chemical formula C₃₀H₂₆N₂O₁₃; related to fluorescein; used in some contexts as a calcium indicator

## Etymology
Blend of calcium + fluorescein.

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