acorn worm

or a·corn·worm

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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.

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Origin of acorn worm

First recorded in 1885–90

Words nearby acorn worm

acorn clock, acorn spoon, acorn squash, acorn tube, acorn valve, acorn worm, A Coruña, acotyledon, acouasm, acouchi, acousma

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use acorn worm in a sentence

And the other is what is called a horsehair worm that overtakes the bodies of insects.
Vampires without Glitter or Girl Problems: Inside Guillermo del Toro’s ‘The Strain’|Andrew Romano|July 14, 2014|DAILY BEAST
Who knew, by the way, that The Carter Center has wiped out guinea worm just about everywhere in Africa but South Sudan?
Don’t Run for President, Hillary. Become a ‘Post-President’ Instead|Tina Brown|May 2, 2014|DAILY BEAST
So, Grey Worm arms the slaves of Meereen, who outnumber the citizens three-to-one.
Game of Thrones’ ‘Oathkeeper’: Joffrey’s Killer Revealed, White Walkers, and A New Jaime Lannister|Marlow Stern|April 28, 2014|DAILY BEAST
If you like mammal species from the suborder Vermilingua (meaning "worm tongue")...
The March Madness Teams to Cheer If Yours Got Bounced|Ben Teitelbaum|March 16, 2014|DAILY BEAST

Perhaps nowhere has an ACORN spin-off been as successful as one has in New York City.
ACORN’s Seeds Sprout Up Across the Country|David Freedlander|January 13, 2014|DAILY BEAST
Although everybody laughed at such a notion, the Worm-eating Warbler declared that he had a right to his own belief.
The Tale of Grandfather Mole|Arthur Scott Bailey
It was no worm that Mrs. Robin had found, but Grandfather Mole's hairless tail sticking out of the ground.
The Tale of Grandfather Mole|Arthur Scott Bailey
For Mrs. Robin had an end of a pinkish-white worm in her bill, on which she was tugging as hard as she could.
The Tale of Grandfather Mole|Arthur Scott Bailey
Every few days after that the boy took Squinty out of his pen, and let him do the rope-jumping and the acorn-hunting tricks.
Squinty the Comical Pig|Richard Barnum
The two animal friends soon came to where some of the acorn nuts had fallen off a tree, and they ate as many as they wanted.
Squinty the Comical Pig|Richard Barnum

British Dictionary definitions for acorn worm

acorn worm

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