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Webster’s Dictionary (1828)



316 words match “AXIS”

PLAGIOTROPIC a.
Having the longer axis inclined away from the vertical line.
PLUMOSE; PLUMOUS a.
Having hairs, or other párts, arranged along an axis like a feather; feathery; plumelike; as, a plumose leaf; plumose tentacles.
POINT-BLANK n.
oint where the projectile first strikes the horizontal plane on which the gun stands, the axis of the piece being horizontal.
POLAR a.
ining to, reckoned from, or having a common radiating point; as, polar coördinates. Polar axis, that axis of an astronomical instrument, as an equatorial, which is parallel to the earths axis. -- Polar bear (Zoöl.), a large bear (Ursus, or Thalarctos, maritimus) inhabiting the arctic regions. It sometimes measures nea…
POLE n. 3 definitions
gle piece or from a single tree. -- Pole of a lens (Opt.), the point where the principal axis meets the surface. -- Pole plate (Arch.), a horizontal timber resting on the tiebeams of a roof and receiving the ends of the rafters. It differs from the plate in not resting on the wall.
POSITIVE a.
inary ray is greater than for the ordinary ray, and the former is refracted nearer to the axis than the latter, as quartz and ice; -- opposed to negative crystal, or one in which this characteristic is reversed, as Iceland spar, tourmaline, etc. -- Positive degree (Gram.), that state of an adjective or adverb which de…
POST n.
-- Post mill, a form of windmill so constructed that the whole fabric rests on a vertical axis firmly fastened to the ground, and capable of being turned as the direction of the wind varies. -- Post and stall (Coal Mining), a mode of working in which pillars of coal are left to support the roof of the mine.…
POSTAXIAL a.
Situated behind any transverse axis in the body of an animal; caudal; posterior; especially, behind, or on the caudal or posterior (that is, ulnar or fibular) side of, the axis of a vertebrate limb.
POSTERIOR a.
On the side next the axis of inflorescence; -- said of an axillary flower. Gray.
PREAXIAL a.
Situated in front of any transverse axis in the body of an animal; anterior; cephalic; esp., in front, or on the anterior, or cephalic (that is, radial or tibial) side of the axis of a limb.
PRIMARY a.
to the injury has passed away, and before symptoms of inflammation supervene. -- Primary axis (Bot.), the main stalk which bears a whole cluster of flowers. -- Primary colors. See under Color. -- Primary meeting, a meeting of citizens at which the first steps are taken towards the nomination of candidates, etc. See…
PRINCIPAL a.
Of or pertaining to a prince; princely. [A Latinism] [Obs.] Spenser. Principal axis. See Axis of a curve, under Axis. -- Principal axes of a quadric (Geom.), three lines in which the principal planes of the solid intersect two and two, as in an ellipsoid. -- Principal challenge. (Law) See under Challenge. -- Princip…
PRISM n.
A form the planes of which are parallel to the vertical axis. See Form, n., 13. Achromatic prism (Opt.), a prism composed usually of two prisms of different transparent substances which have unequal dispersive powers, as two different kinds of glass, especially flint glass and crown glass, the difference of dispersive…
PROLATE a.
d or spheroid (Geom.), a figure generated by the revolution of an ellipse about its major axis. See Ellipsoid of revolution, under Ellipsoid.
PYRAMID n.
pyramid (Geom.), the perpendicular distance from the vertex to the plane of the base. -- Axis of a pyramid (Geom.), a straight line drawn from the vertex to the center of the base. -- Earth pyramid. (Geol.) See Earth pillars, under Earth. -- Right pyramid (Geom.) a pyramid whose axis is perpendicular to the base.…
QUADRATURE n.
figure bounded wholly or in part by a curved line, as by a curve, two ordinates, and the axis of abscissas.
RACEME n.
A flower cluster with an elongated axis and many one-flowered lateral pedicels, as in the currant and chokecherry. Compound raceme, one having the lower pedicels developed into secondary racemes.
RADIATA n.
ficial group of invertebrates, having all the parts arranged radially around the vertical axis of the body, and the various organs repeated symmetrically in each ray or spheromere.
RADIATED a.
e, rays or radii; having parts or markings diverging, like radii, from a common center or axis; as, a radiated structure; a radiated group of crystals.
RADICAL a.
pertaining to a radix or root; as, a radical quantity; a radical sign. See below. Radical axis of two circles. (Geom.) See under Axis. -- Radical pitch, the pitch or tone with which the utterance of a syllable begins. Rush. -- Radical quantity (Alg.), a quantity to which the radical sign is prefixed; specifically, a…
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