a. [In sense 1, f. L. bombus, a. Gr. βόμβος boom, hum + -OUS: in sense 2 f. BOMB sb.]
† 1. Booming, humming. Obs.
1715. trans. Pancirollus’ Rerum Mem., I. IV. xii. 202. The Indians … beating … Drums … made an horrible Noise, and a Bombous kind of Sound. Ibid., II. xviii. 383. Call’d Bombardæ, from the bombous kind of Noise they make.
2. Convexly rounded; having the shape of a fragment of a bomb or sphere.
1878. Bell, Gegenbaur’s Comp. Anat., 423. In some parts as, for example, on the head, they often have a bombous surface, and are set irregularly.
1882. in Jrnl. Linn. Soc., XVI. 195. Dorsal profile rather high and bombous over the disk.
