Entry 1 sense Webster, 1913 Equine /ēk'-wīnˌ/ · E·quine · IPA /ˈɛkˌwaɪn/ 01 a. Of, pertaining to, or resembling, a horse. 1. Of, pertaining to, or resembling, a horse. “The shoulders, body, things, and mane are equine; the head completely bovine.” — Sir J. Barrow.