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utting in action causes or agents over which we have control, and purposely varying their combinations, and noticing what effects take place; this is experiment. Sir J. Herschel.

The lens, or combination of lenses, at the eye end of a telescope or other optical instrument, through which the image formed by the mirror or object glass is viewed. Collimating eyepiece. See under Collimate. -- Negative, or Huyghenian, eyepiece, an eyepiece consisting of two plano-convex lenses with their curved sur…

nment, or state; -- usually applied to a minority, but it may be applied to a majority; a combination or clique of partisans of any kind, acting for their own interests, especially if greedy, clamorous, and reckless of the common good.

A combination of kindred to avenge injuries or affronts, done or offered to any of their blood, on the offender and all his race.

An albuminous substance, existing in the blood, which in combination with fibrinogen forms fibrin; -- called also paraglobulin.

stined to produce seed, and hence including one or both of the sexual organs; an organ or combination of the organs of reproduction, whether inclosed by a circle of foliar parts or not. A complete flower consists of two essential parts, the stamens and the pistil, and two floral envelopes, the corolla and callyx. In mo…

A combination of syllables consisting a metrical element of a verse, the syllables being formerly distinguished by their quantity or length, but in modern poetry by the accent.

The combination of planes included under a general crystallographic symbol. It is not necessarily a closed solid.

The organ formed by the combination or union into one body of stem and leaf, and often bearing the fructification; as, the frond of a fern or of a lichen or seaweed; also, the peculiar leaf of a palm tree.

A combination of similar implements arranged so as, by acting together, to save time or labor; a set; as, a gang of saws, or of plows.

A meeting; -- used in combination, as, Witenagemote, an assembly of the wise men.

er; especially, superior power of invention or origination of any kind, or of forming new combinations; as, a man of genius. Genius of the highest kind implies an unusual intensity of the modifyng power. Coleridge.

ate the amount of the contents at the several levels. -- Graduated spring (Railroads), a combination of metallic and rubber springs.

An electro-negative element or radical, which, by combination with a metal, forms a haloid salt; especially, chlorine, bromine, and iodine; sometimes, also, fluorine and cyanogen. See Chlorine family, under Chlorine.

perpendicularly upon a fixed diameter of the circle. This is simple harmonic motion. The combinations, in any way, of two more simple harmonic motions, make other kinds of harmonic motion. The motion of the pendulum bob of a clock is approximately simple harmonic motion. -- Harmonic proportion. See under Proportion.…

The just adaptation of parts to each other, in any system or combination of things, or in things, or things intended to form a connected whole; such an agreement between the different parts of a design or composition as to produce unity of effect; as, the harmony of the universe.

vaporation, and which, as manifested in fire, the sun's rays, mechanical action, chemical combination, etc., becomes directly known to us through the sense of feeling. In its nature heat is a mode if motion, being in general a form of molecular disturbance or vibration. It was formerly supposed to be a subtile, imponde…

The union of the two sexes in the same individual, or the combination of some of their characteristics or organs in one individual.

Expressing the same sound by a different combination of letters; as, bay and bey.

A circle, or combination of circles, of thin whalebone, metal, or other elastic material, used for expanding the skirts of ladies' dresses; crinoline; -- used chiefly in the plural. Though stiff with hoops, and armed with ribs of whale. Pope.