a bugbear; anything which terrifies.-a general name applied to various insects belonging to the hemiptera; as, the squash bug; the chinch bug, etc.-an insect of the genus cimex, especially the bedbug (c. lectularius). see bedbug.-one of various species of coleoptera; as, the ladybug; potato bug, etc.; loosely, any beetle.-one of certain kinds of crustacea; as, the sow bug; pill bug; bait bug; salve bug, etc.