Defn: A wheel which imparts regularity to the movements of any engine or machine; a fly wheel.

BALANIFEROUS
Bal`a*nif"er*ous, a. Etym: [L. balanus acorn + -ferous.]

Defn: Bearing or producing acorns.

BALANITE
Bal"a*nite, n. Etym: [L. balanus acorn: cf. F. balanite.] (Paleon.)

Defn: A fossil balanoid shell.

BALANOGLOSSUS
Bal`a*no*glos"sus, n. Etym: [NL., fr. Gr. (Zoöl)

Defn: A peculiar marine worm. See Enteropneusta, and Tornaria.

BALANOID
Bal"a*noid, a. Etym: [Gr. -oid.] (Zoöl.)

Defn: Resembling an acorn; — applied to a group of barnacles having shells shaped like acorns. See Acornshell, and Barnacle.

BALAS RUBY
Bal"as ru`by. Etym: [OE. bales, balais, F. balais, LL. balascus, fr.
Ar. balakhsh, so called from Badakhshan, Balashan, or Balaxiam, a
place in the neighborhood of Samarcand, where this ruby is found.]
(Min.)