# basipterygium

> English word · Noun

## Definitions
1. A cartilage at the base of the fins of some fish that develops into the metapterygium upon maturity.

## Etymology
From basi- + pterygium.

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