- Any of several African and Arabian antelopes of the genus <em>Oryx,</em> including the gemsbok, having black or brown markings on the face and long, straight or slightly curved horns.
- An old name of some North African antelope, very likely the algazel: now definitely applied to several species of the genus <em>Oryx.</em>
- [<em>capitalized</em>] A genus of orygine antelopes with long horns in both sexes, without suborbital or inguinal glands, and of large size, with thick neck, high withers, and bushy tail.
- In <em>ornithology</em>: The red and black cardinal of the Cape of Good Hope, a kind of weaverbird, <em>Emberiza orix</em> of Linnæus, now <em>Ploceus</em> (<em>Pyromelana</em>) <em>oryx.</em>
- Hence— [<em>capitalized</em>] A genus of weaver-birds.
- [<em>capitalized</em>] In <em>entomology</em>, a genus of coleopterous insects of the family <em>Scarabæidæ.</em>
- A genus of African antelopes which includes the gemsbok, the leucoryx, the bisa antelope (<spn>Oryx beisa</spn>), and the beatrix antelope (<spn>Oryx beatrix</spn>) of Arabia.
- Any of several <xref>antelopes</xref>, of genus Oryx, native to <xref>Africa</xref>, the males and females of which have long, straight horns.
- large African antelope with long straight nearly upright horns