Pūkāea, n. A sort of trumpet, from 3 ft. to 6 ft. in length, and 8 in. in diameter at the mouth, made of totara or matai wood, split, hollowed, and then bound round, furnished with a vibrating reed at the mouth. It was used to sound an alarm in time of war. Ko te whara o te pukaea he mea whakataratara. ‖ pū (ii).
Williams Dictionary