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Conforming to the scale used by Gabriel Daniel Fahrenheit in the graduation of his thermometer; of or relating to Fahrenheit's thermometric scale. -- n.

vity; to drop; to sink; as, the apple falls; the tide falls; the mercury falls in the barometer. I beheld Satan as lightning fall from heaven. Luke x. 18.

(Astron.) See Shooting star. -- Falling stone, a stone falling through the atmosphere; a meteorite; an aërolite. -- Falling tide, the ebb tide. -- Falling weather, a rainy season. [Colloq.] Bartlett.

Without reality; illusory, like the ignis fatuus. Thence fatuous fires and meteors take their birth. Danham.

he body. -- Fiddle block (Naut.), a long tackle block having two sheaves of different diameters in the same plane, instead of side by side as in a common double block. Knight. -- Fiddle bow, fiddlestick. -- Fiddle fish (Zoöl.), the angel fish. -- Fiddle head, an ornament on a ship's bow, curved like the volute or s…

h design; to adorn with figures. The vaulty top of heaven Figured quite o'er with burning meteors. Shak.

rized by threads stretched across the field of view; as, a filar microscope; a filar micrometer.

which, fills; something used for filling. 'T is mere filer, to stop a vacancy in the hexameter. Dryden. They have six diggers to four fillers, so as to keep the fillers always at work. Mortimer.

A luminous meteor, resembling a ball of fire passing rapidly through the air, and sometimes exploding.

A fiery meteor; an ignis fatuus; a rocket.

to sound smoothly to the ear; to be uttered easily. Virgil is sweet and flowingin his hexameters. Dryden.

or as being which anything is regarded or treated; to be, or as being. We take a falling meteor for a star. Cowley. If a man can be fully assured of anything for a truth, without having examined, what is there that he may not embrace for truLocke. Most of our ingenious young men take up some cried-up English poet for…

e in advance; to forebode. [Obs.] Udall. Laugh at your misery, as foredeeming you An idle meteor. J. Webster.

of chemical salts) for producing intense cold. -- Freezing point, that degree of a thermometer at which a fluid begins to freeze; -- applied particularly to water, whose freezing point is at 32º Fahr., and at 0º Centigrade.

Friction machine, an electrical machine, generating electricity by friction. -- Friction meter, an instrument for measuring friction, as in testing lubricants. -- Friction powder, Friction composition, a composition of chlorate of potassium, antimony, sulphide, etc, which readily ignites by friction. -- Friction pri…

o be a function of the other. Thus, the circumference 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…

th radiating plates, like the gills of a mushroom. Some of them are eighteen inches in diameter.

he spring wind in a spiral groove on the surface of the cone in such a manner that the diameter of the cone at the point where the chain acts may correspond with the degree of tension of the spring.

Helmeted; having a helmetlike part, as a crest, a flower, etc.; helmet-shaped.

Consisting of two iambic dimeters catalectic, the last of which lacks the final syllable; -- said of a kind of verse.