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acerous

1 American  
[ey-seer-uhs] / eɪˈsɪər əs /

adjective

Zoology.

  1. having no antennae.

  2. having no horns.

acerous 2 American  
[as-er-uhs] / ˈæs ər əs /

adjective

Botany.

  1. acerose.

Etymology

Origin of acerous1

< Greek akerós, equivalent to a- a- 6 + -keros, adj. derivative of kéras horn; -ous

Origin of acerous2

First recorded in 1840–50

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.