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al universe, supposed to have been differentiated into what are recognized as distinct chemical elements.

king provision to supply them; prudent in preparing for future exigencies; cautious; economical; -- sometimes followed by of; as, aprovident man; an animal provident of the future. And of our good and of our dignity, How provident he is. Milton.

lass of bodies existing ready formed in animal and vegetable tissues, and separable by chemical analysis, as albumin, sugar, collagen, fat, etc.

Frugal; economical; not extravagant; as, a prudent woman; prudent expenditure of money.

Prussian; -- applied to certain astronomical tables published in the sixteenth century, founded on the principles of Copernicus, a Prussian.

A species of micaceous sandstone. -- Psam*mit"ic, a.

One who accepts the astronomical system of Ptolemy.

The buffoon or harlequin of a puppet show. Punch and Judy, a puppet show in which a comical little hunchbacked Punch, with a large nose, engages in altercation with his wife Judy.

owledge of any kind not possessed; a charlatan. Quacks political; quacks scientific, academical. Carlyle.

-- so called from the quaking noise made during flight. Quaker buttons. (Bot.) See Nux vomica. -- Quaker gun, a dummy cannon made of wood or other material; -- so called because the sect of Friends, or Quakers, hold to the doctrine, of nonresistance. -- Quaker ladies (Bot.), a low American biennial plant (Houstonia…

compounds color flames carmine and give a characteristic spectrum. It resembles barium chemically. Radium preparations are remarkable for maintaining themselves at a higher temperature than their surroundings, and for their radiations, which are of three kinds: alpha rays, beta rays, and gamma rays (see these terms). B…

Having a rank smell or taste, from chemical change or decomposition; musty; as, rancid oil or butter.

To act upon each other; to exercise a reciprocal or a reverse effect, as two or more chemical agents; to act in opposition.

The mutual or reciprocal action of chemical agents upon each other, or the action upon such chemical agents of some form of energy, as heat, light, or electricity, resulting in a chemical change in one or more of these agents, with the production of new compounds or the manifestation of distinctive characters. See Blow…

reduce again to barbarism. -- Re*bar`ba*ri*za"tion, n. Germany . . . rebarbarized by polemical theology and religious wars. Sir W. Hamilton.

The calculation of a ship's position, either from astronomical observations, or from the record of the courses steered and distances sailed as shown by compass and log, -- in the latter case called dead reckoning (see under Dead); -- also used fro dead reckoning in contradistinction to observation.

ideration; reflective; contemplative; as, a reflecting mind. Reflecting circle, an astronomical instrument for measuring angless, like the sextant or Hadley's quadrant, by the reflection of light from two plane mirrors which it carries, and differing from the sextant chiefly in having an entire circle. -- Reflecting g…

rough the earth's atmosphere; -- hence distinguished as atmospheric refraction, or astronomical refraction.

The union of parts which have been severed, so that they become anatomically perfect; as, the regeneration of a nerve.

A clock, or other timepiece, used as a standard of correct time. See Astronomical clock (a), under Clock.