DICT.TW Dictionary Taiwan

 Col·or n. [Written also colour.]
 1. A property depending on the relations of light to the eye, by which individual and specific differences in the hues and tints of objects are apprehended in vision; as, gay colors; sad colors, etc.
 Note: ☞ The sensation of color depends upon a peculiar function of the retina or optic nerve, in consequence of which rays of light produce different effects according to the length of their waves or undulations, waves of a certain length producing the sensation of red, shorter waves green, and those still shorter blue, etc. White, or ordinary, light consists of waves of various lengths so blended as to produce no effect of color, and the color of objects depends upon their power to absorb or reflect a greater or less proportion of the rays which fall upon them.
 2. Any hue distinguished from white or black.
 3. The hue or color characteristic of good health and spirits; ruddy complexion.
    Give color to my pale cheek.   --Shak.
 4. That which is used to give color; a paint; a pigment; as, oil colors or water colors.
 5. That which covers or hides the real character of anything; semblance; excuse; disguise; appearance.
    They had let down the boat into the sea, under color as though they would have cast anchors out of the foreship.   --Acts xxvii. 30.
 That he should die is worthy policy;
 But yet we want a color for his death.   --Shak.
 6. Shade or variety of character; kind; species.
    Boys and women are for the most part cattle of this color.   --Shak.
 7. A distinguishing badge, as a flag or similar symbol (usually in the plural); as, the colors or color of a ship or regiment; the colors of a race horse (that is, of the cap and jacket worn by the jockey).
    In the United States each regiment of infantry and artillery has two colors, one national and one regimental.   --Farrow.
 8. Law An apparent right; as where the defendant in trespass gave to the plaintiff an appearance of title, by stating his title specially, thus removing the cause from the jury to the court.
 Note: ☞ Color is express when it is averred in the pleading, and implied when it is implied in the pleading.
 Body color. See under Body.
 Color blindness, total or partial inability to distinguish or recognize colors. See Daltonism.
 Complementary color, one of two colors so related to each other that when blended together they produce white light; -- so called because each color makes up to the other what it lacks to make it white.  Artificial or pigment colors, when mixed, produce effects differing from those of the primary colors, in consequence of partial absorption.
 Of color (as persons, races, etc.), not of the white race; -- commonly meaning, esp. in the United States, of negro blood, pure or mixed.
 Primary colors, those developed from the solar beam by the prism, viz., red, orange, yellow, green, blue, indigo, and violet, which are reduced by some authors to three, -- red, green, and violet-blue.  These three are sometimes called fundamental colors.
 Subjective color or Accidental color, a false or spurious color seen in some instances, owing to the persistence of the luminous impression upon the retina, and a gradual change of its character, as where a wheel perfectly white, and with a circumference regularly subdivided, is made to revolve rapidly over a dark object, the teeth of the wheel appear to the eye of different shades of color varying with the rapidity of rotation. See Accidental colors, under Accidental.

 Ac·ci·den·tal a.
 1. Happening by chance, or unexpectedly; taking place not according to the usual course of things; casual; fortuitous; as, an accidental visit.
 2. Nonessential; not necessary belonging; incidental; as, are accidental to a play.
 Accidental chords Mus., those which contain one or more tones foreign to their proper harmony.
 Accidental colors Opt., colors depending on the hypersensibility of the retina of the eye for complementary colors. They are purely subjective sensations of color which often result from the contemplation of actually colored bodies.
 Accidental point Persp., the point in which a right line, drawn from the eye, parallel to a given right line, cuts the perspective plane; so called to distinguish it from the principal point, or point of view, where a line drawn from the eye perpendicular to the perspective plane meets this plane.
 Accidental lights Paint., secondary lights; effects of light other than ordinary daylight, such as the rays of the sun darting through a cloud, or between the leaves of trees; the effect of moonlight, candlelight, or burning bodies.
 Syn: -- Casual; fortuitous; contingent; occasional; adventitious.
 Usage: -- Accidental, Incidental, Casual, Fortuitous, Contingent. We speak of a thing as accidental when it falls out as by chance, and not in the regular course of things; as, an accidental meeting, an accidental advantage, etc.  We call a thing incidental when it falls, as it were, into some regular course of things, but is secondary, and forms no essential part thereof; as, an incremental remark, an incidental evil, an incidental benefit. We speak of a thing as casual, when it falls out or happens, as it were, by mere chance, without being prearranged or premeditated; as, a casual remark or encounter; a casual observer. An idea of the unimportant is attached to what is casual. Fortuitous is applied to what occurs without any known cause, and in opposition to what has been foreseen; as, a fortuitous concourse of atoms. We call a thing contingent when it is such that, considered in itself, it may or may not happen, but is dependent for its existence on something else; as, the time of my coming will be contingent on intelligence yet to be received.