granivorousPronunciation: /graˈnɪv(ə)rəs/Definition of granivorous adjective Zoology (of an animal) feeding on grain. Derivatives granivorePronunciation: /ˈgranɪvɔː/ noun Origin: mid 17th century: from Latin granum 'grain' + -vorousgranivorous in other Oxford dictionaries Definition of granivorous in the US English dictionary