# polysomia

> English word · Noun

## Definitions
1. A fetal malformation in which multiple bodies are partially fused together.

## Etymology
From poly- + -some + -ia.

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