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Having a double beak, or two processes resembling beaks. The capsule is bilocular and birostrated. Ed. Encyc.

In certain hydroids, an imperfect zooid, whose special function is to produce medusoid buds. See Hydroidea, and Athecata.

To lift or push from behind (one who is endeavoring to climb); to push up; hence, to assist in overcoming obstacles, or in making advancement. [Colloq. U. S.]

e electro-motive force in an alternating-current circuit; -- so called because used to "boost", or raise, the pressure in the circuit.

ed by four persons, with two packs of fifty-two cards each; -- said to be so called from Boston, Massachusetts, and to have been invented by officers of the French army in America during the Revolutionary war.

A form of cymose inflorescence with all the flowers on one side of the rachis, usually causing it to curl; -- called also a uniparous helicoid cyme.

A branchiostegal ray. See Illustration of Branchial arches in Appendix.

The branchiostegal membrane. See Illustration in Appendix.

Branchiostegal.

The lancelet. See Amphioxus.

Short-billed; having a short beak.

A beam that goes across a building.

Diseased or gangrenous condition of the mouth.

A white crystalline substance, C9H6N.OH, of acid properties derived from one of the amido cinnamic acids.

A term applied to the action of nerve force in the spinal center. Marshall Hall.

The anterior end of the notochord and its bony sheath in the base of cartilaginous crania.

An extensive suborder of marine Bryozoa, mostly with calcareous shells. They have a movable lip and a lid to close the aperture of the cells. [Also written Chillostomata.]

Of or pertaining to the Chilostoma.

An order of fishes, including the sturgeons; -- so named because the skeleton is cartilaginous.