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aciculum

American  
[uh-sik-yuh-luhm] / əˈsɪk yə ləm /

noun

plural

aciculums, acicula

  1. an acicula.

  2. Zoology. one of the slender, sharp stylets embedded in the parapodia of certain annelid worms, as the polychaetes.

aciculum British  
/ əˈsɪkjʊləm /

noun

  1. a needle-like bristle that provides internal support for the appendages (chaetae) of some polychaete worms

"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 aciculum

Alteration of acicula

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

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.