# phyllidium

> English word · Noun

## Definitions
1. A muscular, leaf-shaped or cuplike outgrowth from the lateral wall of the scolex of some cestodes.
2. A rudimentary form of ctenidium found in some gastropods.

## Etymology
From phyllo- + -idium.

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