Part 210

Ruskin.

4. The art and the science of so delineating objects that they shall seem to grow smaller as they recede from the eye; -- called also linear perspective.

5. A drawing in linear perspective.

Isometrical perspective, an inaccurate term for a mechanical way of representing objects in the direction of the diagonal of a cube. -- Perspective glass, a telescope which shows objects in the right position.

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Per*spec"tive*ly (?), adv. 1. Optically; as through a glass. [R.]

You see them perspectively.

Shak.

2. According to the rules of perspective.

Per*spec"to*graph (?), n. [L. perspectus (p. p. of perspicere to look through) + - graph.] An instrument for obtaining, and transferring to a picture, the points and outlines of objects, so as to represent them in their proper geometrical relations as viewed from some one point.

Per`spec*tog"ra*phy (?), n. The science or art of delineating objects according to the laws of perspective; the theory of perspective.

Per"spi*ca*ble (?), a. [L. perspicabilis, fr. perspicere.] Discernible. [Obs.] Herbert.

Per`spi*ca"cious (?), a. [L. perspicax, -acis, fr. perspicere to look through: cf. F. perspicace. See Perspective.] 1. Having the power of seeing clearly; quick-sighted; sharp of sight.

2. Fig.: Of acute discernment; keen.

-- Per`spi*ca"cious*ly, adv. -- Per`spi*ca"cious*ness, n.

Per`spi*cac"i*ty (?), n. [L. perspicacitas: cf. F. perspicacitÈ. See Perspicacious.] The state of being perspicacious; acuteness of sight or of intelligence; acute discernment. Sir T. Browne.

Per"spi*ca*cy (?), n. Perspicacity. [Obs.]

Per*spi"cience (?), n. [L. perspicientia, fr. perspiciens, p. p. of perspicere. See Perspective.] The act of looking sharply. [Obs.] Bailey.

Per"spi*cil (?), n. [LL. perspicilla, fr. L. perspicere to look through.] An optical glass; a telescope. [Obs.] Crashaw.

Per`spi*cu"i*ty (?), n. [L. perspicuitas: cf. F. perspicuitÈ.] 1. The quality or state of being transparent or translucent. [Obs.] Sir T. Browne.

2. The quality of being perspicuous to the understanding; clearness of expression or thought.

3. Sagacity; perspicacity.

Syn. -- Clearness; perspicuousness; plainness; distinctness; lucidity; transparency. See Clearness.

Per*spic"u*ous (?), a. [L. perspicuus, from perspicere to look through. See Perspective.] 1. Capable of being through; transparent; translucent; not opaque. [Obs.] Peacham.

2. Clear to the understanding; capable of being clearly understood; clear in thought or in expression; not obscure or ambiguous; as, a perspicuous writer; perspicuous statements. "The purpose is perspicuous." Shak.

-- Per*spic"u*ous*ly, adv. -- Per*spic"u*ous*ness, n.

Per*spir`a*bil"i*ty (?), n. The quality or state of being perspirable.

Per*spir"a*ble (?), a. [Cf. F. perspirable.] 1. Capable of being perspired. Sir T. Browne.