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a; the sea hare. Some of the species when disturbed throw out a deep purple liquor, which colors the water to some distance. See Illust. in Appendix.

chromatic and spherical aberration; -- said esp. of a lens in which rays of three or more colors are brought to the same focus, the degree of achromatism thus obtained being more complete than where two rays only are thus focused, as in the ordinary achromatic objective. --Ap`o*chro"ma*tism (#), n.

Having or designating conspicuous or warning colors or structures indicative of special means of defense against enemies, as in the skunk.

Ornamented with a pattern (which has been cut out of another color or stuff) applied or transferred to a foundation; as, appliqué lace; appliqué work.

To be sensible of; to distinguish. To test the power of bappreciate color. Lubbock.

n; true estimation; as, an appreciation of the difficulties before us; an appreciation of colors. His foreboding showed his appreciation of Henry's character. J. R. Green.

A fruit allied to the plum, of an orange color, oval shape, and delicious taste; also, the tree (Prunus Armeniaca of Linnæus) which bears this fruit. By cultivation it has been introduced throughout the temperate zone.

A design or painting in thin transparent water colors; also, the mode of painting in such colors.

A painter in thin transparent water colors.

n by the use of aqua fortis, by which an effect is produced resembling a drawing in water colors or India ink; also, the engraving produced by this method.

ping or trailing plant of the Heath family (Epigæa repens), having white or usually rose- colored flowers with a delicate fragrance, growing in small axillary clusters, and appearing early in the spring; in New England known as mayflower; -- called also ground laurel. Gray.

A curvature in the shape of a circular arc or an arch; as, the colored arc (the rainbow); the arc of Hadley's quadrant.

Any curvature in the form of an arch; as, the arch of the aorta. "Colors of the showery arch." Milton. Triumphal arch, a monumental structure resembling an arched gateway, with one or more passages, erected to commemorate a triumph.

The colored ring around the nipple, or around a vesicle or pustule.

Any small space, bounded by some part different in color or structure, as the spaces bounded by the nervures of the wings of insects, or those by the veins of leaves; an areola.

The white color in coats of arms, intended to represent silver, or, figuratively, purity, innocence, beauty, or gentleness; -- represented in engraving by a plain white surface. Weale.

; -- also called vitreous silver, or silver glance. It has a metallic luster, a lead-gray color, and is sectile like lead.

Argillaceous schist or slate; clay slate. Its colors is bluish or blackish gray, sometimes greenish gray, brownish red, etc. -- Ar`gil*lit"ic, a.

Of or pertaining to Armenia. Armenian bole, a soft clayey earth of a bright red color found in Armenia, Tuscany, etc. -- Armenian stone. (a) The commercial name of lapis lazuli. (b) Emery.

The ensigns armorial of a family, consisting of figures and colors borne in shields, banners, etc., as marks of dignity and distinction, and descending from father to son.