# hectocotylus

> English word · Noun

## Definitions
1. A modified arm of any of several male cephalopods that functions as a reproductive organ by transferring sperm to the mantle of the female.

## Etymology
From New Latin, corresponding to hecto- + Ancient Greek κότυλος (kótulos, “small cup”).

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