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Flabellate on both sides.

mon time. -- Binary nomenclature (Nat. Hist.), nomenclature in which the names designate both genus and species. -- Binary scale (Arith.), a uniform scale of notation whose ratio is two. -- Binary star (Astron.), a double star whose members have a revolution round their common center of gravity. -- Binary theory (C…

Of or pertaining to, or used by, both ears.

telescope, fitted with two tubes joining, so as to enable a person to view an object with both eyes at once; a double- barreled field glass or an opera glass.

Pertaining to both eyes; employing both eyes at once; as, binocular vision.

biology which deals with the geographical distribution of animals and plants. It includes both zoögeography and phytogeography. -- Bi`o*ge`o*graph"ic (#), a. -- Bi`o*ge`o*graph"ic*al*ly (#), adv.

Serrate on both sides, as some antennæ.

Of both sexes; hermaphrodite; as a flower with stamens and pistil, or an animal having ovaries and testes.

Montana, etc. It gives the name to the Bitter Root mountains and river. The Indians call both the plant and the river Spæt'lum.

To make black; to blacken; to soil; to sully. They have their teeth blacked, both men and women, for they say a dog hath his teeth white, therefore they will black theirs. Hakluyt. Sins which black thy soul. J. Fletcher.

A species of Cratægus or hawthorn (C. tomentosa). Both are used for hedges.

A downy species of aphis, or plant louse, destructive to fruit trees, infesting both the roots and branches; -- also applied to several other injurious insects.

e or progress; to prevent passage from, through, or into, by obstructing the way; -- used both of persons and things; -- often followed by up; as, to block up a road or harbor. With moles . . . would block the port. Rowe. A city . . . besieged and blocked about. Milton.

blood (Law), relationship through only one parent. -- Whole blood, relationship through both father and mother. In American Law, blood includes both half blood, and whole blood. Bouvier. Peters.

om a fable of , to favor a thing at one time and treat it coldly at another; or to appear both to favor and to oppose. -- To blow off, to let steam escape through a passage provided for the purpose; as, the engine or steamer is blowing off. -- To blow out. (a) To be driven out by the expansive force of a gas or vapor…

running rootstocks and spreads rapidly. It is valuable as a pasture grass, as it endures both winter and drought better than other kinds, and is very nutritious.

Board of Admiralty; a board of trade; a board of directors, trustees, commissioners, etc. Both better acquainted with affairs than any other who sat then at that board. Clarendon. We may judge from their letters to the board. Porteus.

The act of entering a ship, whether with a hostile or a friendly purpose. Both slain at one time, as they attempted the boarding of a frigate. Sir F. Drake.

A spool or reel of various material and construction, with a head at one or both ends, and sometimes with a hole bored through its length by which it may be placed on a spindle or pivot. It is used to hold yarn or thread, as in spinning or warping machines, looms, sewing machines, etc.

See Bothy.