a suffix with the meanings “resembling, having the nature of,” “made of,” occurring in loanwords from Latin (cretaceous; herbaceous) and forming adjectives in English on the Latin model (ceraceous), especially adjectival correspondents to taxonomic names ending in -acea and -aceae: rosaceous.
GEE WHILLIKERS! WAIT TILL YOU SEE THIS WORD OF THE DAY QUIZ!
Do you remember all the words from last week, September 21–27, 2020? Then this quiz should be butyraceous.
Question 1 of 7
What does “yare” mean?
Origin of -aceous
<Latin -āceus;see -ous
Words nearby -aceous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for -aceous
suffix forming adjectives
relating to, belonging to, having the nature of, or resemblingherbaceous; larvaceous
Word Origin for -aceous
New Latin, from Latin -āceus of a certain kind; related to -āc, -āx, adjectival suffix
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
Scientific definitions for -aceous
A suffix used to form adjectives meaning made of or resembling a particular substance or material, such as silicaceous, containing silicon.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.