Webster's Revised Unabridged Dictionary -- Volume AB

A tempest and a blustering day.
Shak.

2. Uttering noisy threats; noisy and swaggering; boisterous. "A blustering fellow." L'Estrange.

Blus"ter·ing·ly, adv. In a blustering manner.

Blus"ter·ous (?), a. Inclined to bluster; given to blustering; blustering. Motley.

Blus"trous (?), a. Blusterous. Shak.

Bo (?), interj. [Cf. W. bw, an interj. of threatening or frightening; n., terror, fear, dread.] An exclamation used to startle or frighten. [Spelt also boh and boo.]

Bo"a (bō"), n.; pl. Boas. [L. boa a kind of water serpent. Perh. fr. bos an ox.]

1. (Zoöl.) A genus of large American serpents, including the boa constrictor, the emperor boa of Mexico (B. imperator), and the chevalier boa of Peru (B. eques).

The name is also applied to related genera; as, the dog-headed boa (Xiphosoma caninum).

2. A long, round fur tippet; -- so called from its resemblance in shape to the boa constrictor.

Bo"a con·strict"or (?). [NL. See Boa, and Constrictor.] (Zoöl.) A large and powerful serpent of tropical America, sometimes twenty or thirty feet long. See Illustration in Appendix.

It has a succession of spots, alternately black and yellow, extending along the back. It kills its prey by constriction. The name is also loosely applied to other large serpents which crush their prey, particularly to those of the genus Python, found in Asia and Africa.

Bo`a·ner"ges (?). [Gr. ?, fr. Heb. bnē hargem sons of thunder. -- an appellation given by Christ to two of his disciples (James and John). See Mark iii. 17.] Any declamatory and vociferous preacher or orator.