# testis

> English word · Noun · frequency rank #57,765

## Definitions
1. A testicle of a vertebrate.
2. An analogous gland in invertebrates such as the hydra.

## Etymology
Learned borrowing from Latin testis.

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