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pikelets, which quake and rattle in the wind. Briza maxima is the large quaking grass; B. media and B. minor are the smaller kinds. (b) Rattlesnake grass (Glyceria Canadensis).

een crystalline substance formed by the union of quinone with hydroquinone, or as an intermediate product in the oxidation of hydroquinone or the reduction of quinone. [Written also chinhydrone.]

, after the manner of light, in distinction from heat conducted or carried by intervening media. -- Radiant point. (Astron.) See Radiant, n., 3.

ally measured and designated by the strength of the lens which if added to the refracting media of the eye would cause the rays from the near point to appear as if they came from the far point. -- Range finder (Gunnery), an instrument, or apparatus, variously constructed, for ascertaining the distance of an inaccessib…

One of six divisions of the county of Sussex, England, intermediate between a hundred and a shire.

A line, ridge, furrow, or band of fibers, especially in the median line; as, the raphe of the tongue.

xperience; equipped or supplied with what is needed for some act or event; prepared for immediate movement or action; as, the troops are ready to march; ready for the journey. "When she redy was." Chaucer.

As opposed to idealism, the doctrine that in sense perception there is an immediate cognition of the external object, and our knowledge of it is not mediate and representative.

Deduction; abatement; as, a rebate of interest for immediate payment; a rebate of importation duties. Bouvier.

oomsday, and the angels reproach my lukewarmness Jer. Taylor. Now this objection to the immediate cognition of external objects has, as far as I know, been redargued in three different ways. Sir W. Hamilton.

Not having redress; such as can not be redressed; irremediable. Sherwood.

ngle which a refracted ray makes with the perpendicular to the surface separating the two media traversed by the ray. -- Conical refraction (Opt.), the refraction of a ray of light into an infinite number of rays, forming a hollow cone. This occurs when a ray of light is passed through crystals of some substances, und…

bstances when the ray passes into it from a vacuum. -- Relative refractive index (of two media) (Opt.), the ratio of the sine of the angle of incidence to the sine of the angle of refraction for a ray passing out of one of the media into the other.

The open hearth, upon which fires were lighted, immediately under the louver, in the center of ancient halls. [Also spelt reredosse.] Fairholt.

To send on from an intermediate station by means of a repeater.

ound, in general, that any particular tide is not principally due to the moon's transit immediatelly proceeding, but to a transit which has occured some time before, and which is said to correspond to it. The retard of the tide is thus distinguished from the lunitidal interval. See under Retardation. rHam. Nav. Encyc.…

oaching consonant chord by prolonging one or more tones of a previous chord into the intermediate chord which follows; -- differing from suspension by resolving upwards instead of downwards.

A loose or irregular train of thought occurring in musing or mediation; deep musing; daydream. "Rapt in nameless reveries." Tennyson. When ideas float in our mind without any reflection or regard of the understanding, it is that which the French call revery, our language has scarce a name for it. Locke.…

The median part of the radula of a mollusk.

A mixture of volatile hydrocarbons intermediate between gsolene and cymogene. It is obtained in the purification of crude petroleum, and is used as a refregerant.