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taining 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. -- Principal plane.…

closely related to the paradise birds, and mostly native of New Guinea. They have a long curved beak and a long graduated tail.

Curved convexly or swelled; as, a pulvinated frieze. Brande & C.

pursuit for tithes ought, and of ancient time did pertain to the spiritual court. Fuller. Curve of pursuit (Geom.), a curve described by a point which is at each instant moving towards a second point, which is itself moving according to some specified law.

ared, 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.

A curve made use of in the quadrature of other curves; as the quadratrix, of Dinostratus, or of Tschirnhausen.

peration 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.

Possessing four nodes; as, quadrinodal curves.

To shorten the radius of (a curve); to make (a curve) sharper; as, to quicken the sheer, that is, to make its curve more pronounced.

ching or striking a ball in tennis and similar games. Each one [of the Indians] has a bat curved like a crosier, and ending in a racket. Bancroft.

A straight line (or the length of such line) connecting any point, as of a curve, with a fixed point, or pole, round which the straight line turns, and to which it serves to refer the successive points of a curve, in a system of polar coördinates. See Coördinate, n.

A short bend, slope, or curve, where a hand rail or cap changes its direction.

especially Solen, or Ensatella, ensis, and Americana, which have a long, narrow, somewhat curved shell, resembling a razor handle in shape. Called also rasor clam, razor fish, knife handle. -- Razor stone. Same as Novaculite. -- Razor strap, or razor strop, a strap or strop used in sharpening razors.…

Admitting, as a curve, of the construction of a straight l

The determination of a straight line whose length is equal a portion of a curve. Rectification of a globe (Astron.), its adjustment preparatory to the solution of a proposed problem.

Recurved.

The act of recurving, or the state of being recurved; a bending or flexure backward.

Recurved. Derham.

Valvate with the margins curved outwardly; -- said of the

To bend or curve back; as, a retorted line. With retorted head, pruned themselves as they floated. Southey.