# semantide

> English word · Noun

## Definitions
1. A macromolecule common to all cells, used in phylogeny because they change slowly over time.

## Etymology
From semanto- + -ide. Coined by Linus Pauling and Emile Zuckerkandl.

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