The heat becomes too powerful and boisterous for them.
Woodward.
Syn. -- Loud; roaring; violent; stormy; turbulent; furious; tumultuous; noisy; impetuous; vehement.
Bois"ter*ous*ly, adv. In a boisterous manner.
Bois"ter*ous*ness, n. The state or quality of being boisterous; turbulence; disorder; tumultuousness.
Bois"tous (&?;), a. Rough or rude; coarse; strong; violent; boisterous; noisy. [Obs.] Chaucer. -- Bois"tous*ly, adv. -- Bois"tous*ness, n. [Obs.] Chaucer.
Bo*ja"nus or"gan (&?;). [From Bojanus, the discoverer.] (Zoöl.) A glandular organ of bivalve mollusca, serving in part as a kidney.
Bo"ka*dam` (&?;), n. (Zoöl.) See Cerberus.