relating to, belonging to, having the nature of, or resembling: herbaceous, larvaceous
WordReference Random House Unabridged Dictionary of American English © 2026
-aceous,
- Biologya 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), esp. adjectival correspondents to taxonomic names ending in -acea and -aceae: rosaceous.
- Latin -āceus; see -ous
Collins Concise English Dictionary © HarperCollins Publishers::
'-aceous' also found in these entries (note: many are not synonyms or translations):
-acea
- -aceae
- acinaceous
- alliaceous
- alutaceous
- amentaceous
- ampullaceous
- amylaceous
- apocynaceous
- arenaceous
- argillaceous
- aristolochiaceous
- arundinaceous
- asteraceous
- avenaceous
- balsaminaceous
- betulaceous
- butyraceous
- canvas
- capillaceous
- carbonaceous
- ceraceous
- chartaceous
- chylaceous
- cistaceous
- coriaceous
- corollaceous
- cretaceous
- crustaceous
- cuirass
- curvaceous
- cycadaceous
- cylindraceous
- cyperaceous
- drupaceous
- farinaceous
- filasse
- focaccia
- foliaceous
- frumentaceous
- furfuraceous
- gallinaceous
- gemmaceous
- glumaceous
- grimace
- herbaceous
- lardaceous
- liliaceous
- malvaceous
- rudaceous