BARRIER n.
xt that [instinct] and reason, what a nice barrier ! Pope. Barrier gate, a heavy gate to close the opening through a barrier. -- Barrier reef, a form of coral reef which runs in the general direction of the shore, and incloses a lagoon channel more or less extensive. -- To fight at barriers, to fight with a barrier b…
BEE n.
-- Bee glue, a soft, unctuous matter, with which bees cement the combs to the hives, and close up the cells; -- called also propolis. -- Bee hawk (Zoöl.), the honey buzzard. -- Bee killer (Zoöl.), a large two-winged fly of the family Asilidæ (esp. Trupanea apivora) which feeds upon the honeybee. See Robber fly. -- B…
BELL JAR n.
A glass vessel, varying in size, open at the bottom and closed at the top like a bell, and having a knob or handle at the top for lifting it. It is used for a great variety of purposes; as, with the air pump, and for holding gases, also for keeping the dust from articles exposed to view.
BENZENE n.
arely, to a similar mixed product of petroleum. Benzene nucleus, Benzene ring (Chem.), a closed chain or ring, consisting of six carbon atoms, each with one hydrogen atom attached, regarded as the type from which the aromatic compounds are derived. This ring formula is provisionally accepted as representing the probabl…