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In a principal manner; primarily; above all; chiefly; mainly.

us plant (Asarum Europæum), the leaves and roots of which are emetic and cathartic. It is principally used in cephalic snuffs.

A raft or float, used principally on the Pacific coast of South America.

A suffix or terminal formative, used principally in biological terms, and signifying growth, formation; as, bioblast, epiblast, mesoblast, etc.

supporting, the upper part of a front or external wall; a long lintel; a girder; -- used principally above shop windows. [Written also brestsummer and bressummer.]

One of a race of South African nomads, living principally in the deserts, and not classified as allied in race or language to any other people.

In the first place; principally; preëminently; above; especially. Search through this garden; leave unsearched no nook; But chiefly where those two fair creatures lodge. Milton.

A native or natives of China, or one of that yellow race with oblique eyelids who live principally in China.

An atmosphere of rare matter, composed principally of incandescent hydrogen gas, surrounding the sun and enveloping the photosphere. Portions of the chromosphere are here and there thrown up into enormous tongues of flame.

An apparatus used in controlling certain kinds of aëroplanes, and consisting principally of a steering column mounted with a universal joint at the base, which is bellshaped and has attached to it the cables for controlling the wing-warping devices, elevator planes, and the like.

Having elevations or depressions in form like one half of a bivalve shell; -- applied principally to a surface produced by fracture.

A mineral consisting principally of sulphate of iron; white copperas; -- so called because found in the province of Coquimbo, Chili.

The erosion of the bed of a stream by running water, principally by attrition of the detritus carried along by the stream, but also by the solvent action of the water.

A mineral consisting principally of silicate of iron, and crystallizing in hexagonal prisms with perfect basal cleavage; -- so named from the Swedish mineralogist Cronstedt.

ranch of the great Slavic family of nations, numbering now more than 6,000,000, and found principally in Bohemia and Moravia.

seous prodact, formed in coal mines, old wells, pints, etc. Choke damp, a damp consisting principally of carboniCarbonic acid, under Carbonic. -- Damp sheet, a curtain in a mine gallery to direct air currents and prevent accumulation of gas. -- Fire damp, a damp consisting chiefly of light carbureted hydrogen; -- so…

ion when the operations are mentally performed and only the results written down; -- used principally when the divisor is not greater than ten or twelve.

The leaving of the disease principally to the efforts of nature to effect a cure. Expectation of life, the mean or average duration of the life individuals after any specified age.

The mechanism for closing the breech of a breech-loading firearm, in artillery consisting principally of the breechblock, obturator, and carrier ring.

A mineral of a nearly black color and vitreous luster, and consisting principally of the silicates of yttrium, cerium, and iron.