# FG syndrome

> English word · Noun

## Definitions
1. A rare genetic disorder linked to the X chromosome, causing physical anomalies and developmental delays, characterised by retardation, hyperactive behaviour, constipation, hypotonia, and a characteristic facial appearance.

## Etymology
From the initials of the surnames of two sisters who had five sons with the syndrome.

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