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A unit of illumination, being the amount of illumination of a unit area of spherical surface, due to a light of unit intensity placed at the center of the sphere.

A special area in front of the beak of many bivalve shells. It sometimes has the shape of a double crescent, but is oftener heart- shaped. See Illust. of Bivalve.

where the game of mall was played. Hence: A public walk; a level shaded walk. Part of the area was laid out in gravel walks, and planted with elms; and these convenient and frequented walks obtained the name of the City Mall. Southey.

-- Liquid measure, the measure of liquids. -- Square measure, the measure of superficial area of surfaces in square units, as inches, feet, miles, etc. -- To have hard measure, to have harsh treatment meted out to one; to be harshly or oppressively dealt with. -- To take measures, to make preparations; to provide me…

That branch of applied geometry which gives rules for finding the length of lines, the areas of surfaces, or the volumes of solids, from certain simple data of lines and angles.

The operation of cutting into the uterus; hysterotomy; the Cæsarean section.

Of, pertaining to, containing, or resembling nectar; delicious; nectarean. Pope. -- Nec*ta"re*ous*ly, adv. -- Nec*ta"re*ous*ness, n.

ry at the temperature of melting ice 14.4521 grams in mass, of a constant cross-sectional area, and of the length of 106.3 centimeters. As thus defined it is called the international ohm. Ohm's law (Elec.), the statement of the fact that the strength or intensity of an electrical current is directly proportional to the…

somewhat hatched-shaped, bounded by a semicircle and two inverted quadrants, and equal in area to the square ABCD inclosed by the chords of the four quadrants. [Written also pelicoid.] Math. Dict.

A Shakespearean word of disputed meaning; perh., "abounding in marsh marigolds." Thy banks with pioned and twilled brims. Shak.

An inclosed area into which gamecocks, dogs, and other animals are brought to fight, or where dogs are trained to kill rats. "As fiercely as two gamecocks in the pit." Locke.

A broad way in a city; an open space; an area; a court or short part of a street open only at one end. "Hangman boys in the market place." Shak.

An instrument for measuring the area of any plane figure, however irregular, by passing a tracer around the bounding line; a platometer.

A flat surface; especially, a broad, level, elevated area of land; a table-land.

rring after the last glacial epoch of the Pleistocene period, or at a locality within the area of Pleistocene glaciation after the final disappearance of the glacier from the locality.

a thrust, distributed over a surface, often estimated with reference to the upon a unit's area. Atmospheric pressure, Center of pressure, etc. See under Atmospheric, Center, etc. -- Back pressure (Steam engine), pressure which resists the motion of the piston, as the pressure of exhaust steam which does not find free…

One of the definite areas of the skin of a bird on which feathers grow; -- contrasted with apteria.

The arrangement of feathers in definite areas.

That may be sqyared, or reduced to an equivalent square; -- said of a surface when the area limited by a curve can be exactly found, and expressed in a finite number of algebraic terms.

The act of squaring; the finding of a square having the same area as some given curvilinear figure; as, the quadrature of a circle; the operation of finding an expression for the area of a figure bounded wholly or in part by a curved line, as by a curve, two ordinates, and the axis of abscissas.