# semialdehyde

> English word · Noun

## Definitions
1. The monoaldehyde of a dicarboxylic acid; those of some amino acids are intermediates in biosynthesis

## Etymology
From semi- + aldehyde.

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