-aceous

-aceous

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.

Origin:
< Latin -āceus; see -ous
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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-aceous is always a great word to know.
So is slumgullion. Does it mean:
a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.
a stew of meat, vegetables, potatoes, etc.
Collins
World English Dictionary
-aceous
 
suffix forming adjectives
relating to, belonging to, having the nature of, or resembling: herbaceous; larvaceous
 
[New Latin, from Latin -āceus of a certain kind; related to -āc,-āx, adjectival suffix]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Science Dictionary
-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 © 2002. Published by Houghton Mifflin. All rights reserved.
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