# noctiluca

> English word · Noun · IPA /ˌnɒk.tɪˈluː.kə/

## Definitions
1. A firefly, glowworm.
2. The moon
3. A phosphorescent substance
4. Noctiluca scintillans (sea sparkle).

## Etymology
From Latin noctilūca.

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