Meaning of -aceous

-aceous

Pronunciation: [key]
  1. 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), esp. adjectival correspondents to taxonomic names ending inandrosaceous.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.