sea slug

  1. a nudibranch.

Origin of sea slug

First recorded in 1770–80

Words Nearby sea slug Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use sea slug in a sentence

British Dictionary definitions for sea slug

sea slug

  1. any of various shell-less marine gastropod molluscs, esp those of the order Nudibranchia: See nudibranch

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for sea slug

sea slug

  1. Any of various colorful marine gastropods of the suborder Nudibranchia, lacking a shell and gills but having fringelike projections that serve as respiratory organs. Also called nudibranch

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.