a. [ Gr.
Achromatic lens (Opt.),
Achromatic prism.
Achromatic telescope, or
microscope
adv. In an achromatic manner. [ 1913 Webster ]
n. Achromatism. [ 1913 Webster ]
n. (Biol.) Tissue which is not stained by fluid dyes. W. Flemming. [ 1913 Webster ]
adj.
v.
n. [ Cf. F. achromatisme. ] The state or quality of being achromatic;
n. [ Cf. F. achromatisation. ] The act or process of achromatizing. [ 1913 Webster ]
v. t.
a. [ Pref. apo- + chromatic. ] (Optics) Free from 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. --
v. t. To combine or treat with a bichromate, esp. with bichromate of potassium;
a. [ L. chromaticus, Gr. &unr_;, suited for color, fr. &unr_;, &unr_;, color; akin to &unr_; color, &unr_; skin, color of the skin. ]
☞ The intermediate tones were formerly written and printed in colors. [ 1913 Webster ]
Chromatic aberration. (Opt.)
Chromatic printing,
Chromatic scale (Mus.),
a. Chromatic. [ Obs. ] [ 1913 Webster ]
adv. In a chromatic manner. [ 1913 Webster ]
n. the quality of a color as determined by its dominant wavelength.
n. The science of colors; that part of optics which treats of the properties of colors. [ 1913 Webster ]
n. (Cell Biol.) one of two identical strands into which a chromosome splits during mitosis. [ WordNet 1.5 ]
n. [ Gr. &unr_;, &unr_;, color. ]
n. (Biol.) The deeply staining substance of the nucleus and chromosomes of eukaryotic cells, composed of DNA and basic proteins (such as histones), the DNA of which comprises the predominant physical basis of inheritance. It was, at the beginning of the 20th century, supposed to be the same substance as was then termed
n. [ Gr. &unr_; a coloring. ] [ 1913 Webster ]
a. [ Pref. di- + chromatic: cf. Gr. &unr_;. ]
n. The state of being dichromatic. [ 1913 Webster ]
n. The condition of having an unusual intensity of color. [ 1913 Webster ]
a. [ Iso- + chromatic. ] (Opt.) Having the same color; connecting parts having the same color, as lines drawn through certain points in experiments on the chromatic effects of polarized light in crystals. [ 1913 Webster ]
n. See Lithochromics. [ 1913 Webster ]
a. [ Cf. F. monochromatique. See Monochrome. ] Consisting of one color, or presenting rays of light of one color only. [ 1913 Webster ]
Monochromatic lamp (Opt.),
a. [ Photo- + tri- + chromatic. ] Designating a photomechanical process for making reproductions in natural colors by three printings. [ Webster 1913 Suppl. ]
a. Pleochroic. [ 1913 Webster ]
n. Pleochroism. [ 1913 Webster ]
a. [ Poly- + chromatic. ] Showing a variety, or a change, of colors. [ 1913 Webster ]
Polychromatic acid (Old Chem.),
a. [ Pref. tri- + chromatic. ] (Zool.) Having or existing in three different phases of color; having three distinct color varieties; -- said of certain birds and insects. [ 1913 Webster ]
n. (Zool.) The quality, state, or phenomenon of being trichromatic. [ 1913 Webster ]