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The Collaborative International Dictionary of English v.0.48:

Primary \Pri"ma*ry\, a. [L. primarius, fr. primus first: cf. F. primaire. See Prime, a., and cf. Premier, Primero.] 1. First in order of time or development or in intention; primitive; fundamental; original. [1913 Webster] The church of Christ, in its primary institution. --Bp. Pearson. [1913 Webster] These I call original, or primary, qualities of body. --Locke. [1913 Webster] 2. First in order, as being preparatory to something higher; as, primary assemblies; primary schools. [1913 Webster] 3. First in dignity or importance; chief; principal; as, primary planets; a matter of primary importance. [1913 Webster] 4. (Geol.) Earliest formed; fundamental. [1913 Webster] 5. (Chem.) Illustrating, possessing, or characterized by, some quality or property in the first degree; having undergone the first stage of substitution or replacement. [1913 Webster] Primary alcohol (Organic Chem.), any alcohol which possess the group CH2.OH, and can be oxidized so as to form a corresponding aldehyde and acid having the same number of carbon atoms; -- distinguished from secondary & tertiary alcohols. Primary amine (Chem.), an amine containing the amido group, or a derivative of ammonia in which only one atom of hydrogen has been replaced by a basic radical; -- distinguished from secondary & tertiary amines. Primary amputation (Surg.), an amputation for injury performed as soon as the shock due to the injury has passed away, and before symptoms of inflammation supervene. Primary axis (Bot.), the main stalk which bears a whole cluster of flowers. Primary colors. See under Color. Primary meeting, a meeting of citizens at which the first steps are taken towards the nomination of candidates, etc. See Caucus. Primary pinna (Bot.), one of those portions of a compound leaf or frond which branch off directly from the main rhachis or stem, whether simple or compounded. Primary planets. (Astron.) See the Note under Planet. Primary qualities of bodies, such are essential to and inseparable from them. Primary quills (Zool.), the largest feathers of the wing of a bird; primaries. Primary rocks (Geol.), a term early used for rocks supposed to have been first formed, being crystalline and containing no organic remains, as granite, gneiss, etc.; -- called also primitive rocks. The terms Secondary, Tertiary, and Quaternary rocks have also been used in like manner, but of these the last two only are now in use. Primary salt (Chem.), a salt derived from a polybasic acid in which only one acid hydrogen atom has been replaced by a base or basic radical. Primary syphilis (Med.), the initial stage of syphilis, including the period from the development of the original lesion or chancre to the first manifestation of symptoms indicative of general constitutional infection. Primary union (Surg.), union without suppuration; union by the first intention. [1913 Webster]
The Collaborative International Dictionary of English v.0.48:

Color \Col"or\ (k[u^]l"[~e]r), n. [Written also colour.] [OF. color, colur, colour, F. couleur, L. color; prob. akin to celare to conceal (the color taken as that which covers). See Helmet.] 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. [1913 Webster] 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. [1913 Webster] 2. Any hue distinguished from white or black. [1913 Webster] 3. The hue or color characteristic of good health and spirits; ruddy complexion. [1913 Webster] Give color to my pale cheek. --Shak. [1913 Webster] 4. That which is used to give color; a paint; a pigment; as, oil colors or water colors. [1913 Webster] 5. That which covers or hides the real character of anything; semblance; excuse; disguise; appearance. [1913 Webster] 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. [1913 Webster] That he should die is worthy policy; But yet we want a color for his death. --Shak. [1913 Webster] 6. Shade or variety of character; kind; species. [1913 Webster] Boys and women are for the most part cattle of this color. --Shak. [1913 Webster] 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). [1913 Webster] In the United States each regiment of infantry and artillery has two colors, one national and one regimental. --Farrow. [1913 Webster] 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. --Blackstone. [1913 Webster] Note: Color is express when it is averred in the pleading, and implied when it is implied in the pleading. [1913 Webster] 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. [1913 Webster]