Definition of -ous 

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

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

History and Etymology for -ous

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

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Dictionary Entries near -ous

ourselves

Ourthe

our time

-ous

Ouse

ousel

Oushak

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English Language Learners Definition of -ous

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

\əs\

Kids Definition of -ous

: full of : having : resembling dangerous poisonous

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