# phenylthiohydantoin

> English word · Noun

## Definitions
1. Any phenyl derivative of a thiohydantoin, but especially one formed from an amino acid in the Edman method of protein degradation

## Etymology
From phenyl + thiohydantoin.

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