FORK-TAILED a.
ones; swallow-tailed; -- said of many birds. Fork-tailed flycatcher (Zoöl.), a tropical American flycatcher (Milvulus tyrannus). -- Fork-tailed gull (Zoöl.), a gull of the genus Xema, of two species, esp. X. Sabinii of the Arctic Ocean. -- Fork-tailed kite (Zoöl.), a graceful American kite (Elanoides forficatus); --…
FOUR-O'CLOCK n.
e genus Mirabilis. There are about half a dozen species, natives of the warmer parts of America. The common four- o'clock is M. Jalapa. Its flowers are white, yellow, and red, and open toward sunset, or earlier in cloudy weather; hence the name. It is also called marvel of Peru, and afternoon lady.
FOX n. 2 definitions
ulpes, family Canidæ, of many species. The European fox (V. vulgaris or V. vulpes), the American red fox (V. fulvus), the American gray fox (V. Virginianus), and the arctic, white, or blue, fox (V. lagopus) are well-known species.
FRIAR n.
An American fish; the silversides. Friar bird (Zoöl.), an Australian bird (Tropidorhynchus corniculatus), having the head destitute of feathers; -- called also coldong, leatherhead, pimlico; poor soldier, and four-o'clock. The name is also applied to several other species of the same genus. -- Friar's balsam (Med.), a…
FROST n.
illustrating the freezing of water in a vacuum; a cryophous. -- Frost grape (Bot.), an American grape, with very small, acid berries. -- Frost lamp, a lamp placed below the oil tube of an Argand lamp to keep the oil limpid on cold nights; -- used especially in lighthouses. Knight. -- Frost nail, a nail with a sharp…
FUNCTION n.
ference of a circle is a function of the diameter. If x be a symbol to which different numerical values can be assigned, such expressions as x2, 3x, Log. x, and Sin. x, are all functions of x. Algebraic function, a quantity whose connection with the variable is expressed by an equation that involves only the algebraic…