-ous

adjective suffix

Definition of -ous

  1. 1 :  full of :  abounding in :  having :  possessing the qualities of clamorous poisonous

  2. 2 :  having a valence lower than in compounds or ions named with an adjective ending in -ic mercurous

Origin and Etymology of -ous

Middle English, from Anglo-French -us, -ous, from Latin -osus


-OUS Defined for English Language Learners

-ous

adjective suffix

Definition of -ous for English Language Learners

  • : full of : having a large amount of : having the quality of


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