The Collaborative International Dictionary of English v.0.48:
bushbuck \bush"buck`\ n. 1. antelope with white harnesslike markings and twisted horns. Syn: guib, Tragelaphus scriptus. [WordNet 1.5]WordNet (r) 3.0 (2006):
bushbuck n 1: antelope with white markings like a harness and twisted horns [syn: bushbuck, guib, Tragelaphus scriptus]