Obs. [n. of action f. L. boāre to bellow: see -ATION.] Bellowing, roaring.
1646. Sir T. Browne, Pseud. Ep., III. xxvii. 142. Whether the large perforations … may not much assist this mugiency or boation.
1713. Derham, Phys.-Theol. (1727), 133. To send their Minds at great Distances, in a Short Time, in loud Boations.
