American Heritage® Dictionary of the English Language, Fourth
Edition - n. An antelope (Addax nasomaculatus) of northern
Africa having long, spirally twisted horns. Century Dictionary
and Cyclopedia - n. The native name of a species of African
antelope, a ruminant, hoofed, artiodactyl quadruped, of the
subfamily Antilopinæ, family Bovidæ; the Antilope addax of
Lichtenstein, Oryx addax of some, Oryx nasomaculatus of others,
now Addax nasomaculatus: the word addax thus becoming
technically a generic name, after having been a technical
specific term, as well as originally a vernacular appellation.
The addax is about 6 feet long, and about 3 feet high at the
shoulder; stout in the body, like the ass; and with horns 3 or 4
feet long, slender, ringed, spirally twisted into two or three
turns, and present in both sexes. The ears and tail are long,
the latter terminated by a switch of hair; there are tufts of
hair upon the throat, forehead, and tear-bag; the hoofs are
large and semicircular, adapted for treading upon