Showing results for acorn worm. Search instead for YouPorn corr.

acorn worm

American

Or acornworm

noun

any of several burrowing, often brilliantly colored hemichordates of the class Enteropneusta, usually found in intertidal sand and mud, having an acorn-shaped proboscis and collar.

acorn worm British

noun

any of various small burrowing marine animals of the genus Balanoglossus and related genera, having an elongated wormlike body with an acorn-shaped eversible proboscis at the head end: subphylum Hemichordata (hemichordates)

"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

Etymology

Origin of acorn worm

First recorded in 1885–90

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

acorn worm

The researchers found that the genes in the head region of the acorn worm were “switched on” in the starfish’s bumpy skin, which covered its entire body.

From Scientific American ● Nov. 3, 2023

A rather uncommon marine worm, called Balanoglossus or the acorn worm, has a very strong and unpleasant smell like that of iodoform.

From More Science From an Easy Chair by Lankester, E. Ray (Edwin Ray), Sir

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023