# seven-arm octopus

> English word · Noun

## Definitions
1. Haliphron atlanticus, a species of octopus, notable for its large size.

## Etymology
Because in male seven-arm octopuses, one of their tentacles is smaller and concealed, and is often overlooked.

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