aculeus

[uh-kyoo-lee-uh s]

Origin of aculeus

1820–30; < Latin: sting, barb, equivalent to acu(s) needle + -leus noun suffix
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for aculeus

aculeus

noun
  1. a prickle or spine, such as the thorn of a rose
  2. a sting or ovipositor

Word Origin for aculeus

C19: from Latin, diminutive of acus needle
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