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1 a) composed of or resembling tough fibrous material consisting chiefly of keratin: KERATINOUS <\horny tissue> <after the \horny material has been...cut away (Morris Fishbein)>
b) being hard or callused <horny-handed>
2) having horns
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hor·ny (horґne) having the nature and appearance of horn; called also corneous, keratic, and keratinous.Medical dictionary. 2011.