Part 962

||Hy`per*Ês*the"si*a (?), n. [NL., fr. Gr. "ype`r over + &?; sense, ||perception.] (Med. & Physiol.) A state of exalted or morbidly ||increased sensibility of the body, or of a part of it. -- ||Hy`per*Ês*thet"ic (#), a.

||Hy`per*a*poph"y*sis (?), n.; pl. Hyperapophyses (#). [NL. See Hyper- ||, and Apophysis.] (Anat.) A lateral and backward-projecting process ||on the dorsal side of a vertebra. - - Hy`per*ap`o*phys"i*al (#), a.

Hy`per*as"pist (?), n. [Gr. &?;, fr. &?; to cover with a shield; "ype`r over + &?; shield.] One who holds a shield over another; hence, a defender. [Obs.] Chillingworth.

Hy`per*bat"ic (?), a. Of or pertaining to an hyperbaton; transposed; inverted.

||Hy*per"ba*ton (?), n. [L., fr. Gr. &?;, fr. &?; transposed, fr. &?; ||to step over; "ype`r over + &?; to step.] (Gram.) A figurative ||construction, changing or inverting the natural order of words or ||clauses; as, "echoed the hills" for "the hills echoed."

With a violent hyperbaton to transpose the text.

Milton.

Hy*per"bo*la (?), n. [Gr. &?;, prop., an overshooting, excess, i. e., of the angle which the cutting plane makes with the base. See Hyperbole.] (Geom.) A curve formed by a section of a cone, when the cutting plane makes a greater angle with the base than the side of the cone makes. It is a plane curve such that the difference of the distances from any point of it to two fixed points, called foci, is equal to a given distance. See Focus. If the cutting plane be produced so as to cut the opposite cone, another curve will be formed, which is also an hyperbola. Both curves are regarded as branches of the same hyperbola. See Illust. of Conic section, and Focus.

Hy*per"bo*le (?), n. [L., fr. Gr&?;, prop., an overshooting, excess, fr. Gr. &?; to throw over or beyond; "ype`r over + &?; to throw. See Hyper-, Parable, and cf. Hyperbola.] (Rhet.) A figure of speech in which the expression is an evident exaggeration of the meaning intended to be conveyed, or by which things are represented as much greater or less, better or worse, than they really are; a statement exaggerated fancifully, through excitement, or for effect.

Our common forms of compliment are almost all of them extravagant hyperboles.

Blair.

Somebody has said of the boldest figure in rhetoric, the hyperbole, that it lies without deceiving.

Macaulay.

{ Hy`per*bol"ic (?), Hy`per*bol"ic*al (?), } a. [L. hyperbolicus, Gr. &?;: cf. F. hyperbolique.] 1. (Math.) Belonging to the hyperbola; having the nature of the hyperbola.

2. (Rhet.) Relating to, containing, or of the nature of, hyperbole; exaggerating or diminishing beyond the fact; exceeding the truth; as, an hyperbolical expression. "This hyperbolical epitaph." Fuller.

Hyperbolic functions (Math.), certain functions which have relations to the hyperbola corresponding to those which sines, cosines, tangents, etc., have to the circle; and hence, called hyperbolic sines, hyperbolic cosines, etc. -- Hyperbolic logarithm. See Logarithm. -- Hyperbolic spiral (Math.), a spiral curve, the law of which is, that the distance from the pole to the generating point varies inversely as the angle swept over by the radius vector.

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Hy`per*bol"ic*al*ly (?), adv. 1. (Math.) In the form of an hyperbola.

2. (Rhet.) With exaggeration; in a manner to express more or less than the truth. Sir W. Raleigh.

Hy`per*bol"i*form (?), a. [Hyperbola + -form.] Having the form, or nearly the form, of an hyperbola.

Hy*per"bo*lism (?), n. [Cf. F. hyperbolisme.] The use of hyperbole. Jefferson.

Hy*per"bo*list (?), n. One who uses hyperboles.

Hy*per"bo*lize (?), v. i. [imp. & p. p. Hyperbolized (?); p. pr. & vb. n. Hyperbolizing (?).] [Cf. F. hyperboliser.] To speak or write with exaggeration. Bp. Montagu.

Hy*per"bo*lize, v. t. To state or represent hyperbolically. Fotherby.

Hy*per"bo*loid (?), n. [Hyperbola + -oid: cf. F. hyperboloÔde.] (Geom.) A surface of the second order, which is cut by certain planes in hyperbolas; also, the solid, bounded in part by such a surface.

Hyperboloid of revolution, an hyperboloid described by an hyperbola revolving about one of its axes. The surface has two separate sheets when the axis of revolution is the transverse axis, but only one when the axis of revolution is the conjugate axis of the hyperbola.

Hy*per"bo*loid, a. (Geom.) Having some property that belongs to an hyperboloid or hyperbola.

Hy`per*bo"re*an (?), a. [L. hyperboreus, Gr. &?;; "ype`r over, beyond + &?;. See Boreas.] 1. (Greek Myth.) Of or pertaining to the region beyond the North wind, or to its inhabitants.