# Harderian gland

> English word · Noun

## Definitions
1. A gland found within the eye's orbit in vertebrates that possess a nictitating membrane.

## Etymology
From Harder + -ian, since first described in 1694 by Swiss anatomist Johann Jacob Harder (1656–1711).

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