# siphuncle

> English word · Noun

## Definitions
1. A strand of tissue passing longitudinally through the shell of a cephalopod, used primarily in emptying water from new chambers as the shell grows.
2. A nectary.

## Etymology
From Latin sīphunculus (“little tube”).

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