%chloro%

n. [ Gr. chlwro`s light green + E. cruorin. ] (Physiol.) A green substance, supposed to be the cause of the green color of the blood in some species of worms. Ray Lankester. [ 1913 Webster ]

n. [ From chlorine, in imitation of anodyne. ] (Med.) A patent anodyne medicine, containing opium, chloroform, Indian hemp, etc. [ 1913 Webster ]

n. [ Chlorine + formyl, it having been regarded as a trichloride of this radical: cf. F. chloroforme, G. chloroform. ] (Chem.) A colorless volatile liquid, CHCl3, having an ethereal odor and a sweetish taste, formed by treating alcohol with chlorine and an alkali. It is a powerful solvent of wax, resin, etc., and is extensively used to produce anæsthesia in surgical operations; also externally, to alleviate pain. [ 1913 Webster ]

v. t. [ imp. & p. p. Chloroformed p. pr. & vb. n. Chloroforming. ] To treat with chloroform, or to place under its influence. [ 1913 Webster ]

n. [ Gr. chlwro`s light green + E. leucite. ] (Bot.) Same as Chloroplastid. [ 1913 Webster ]

n. [ Cf. F. chloromètre. See Chlorine, and -meter. ] An instrument to test the decoloring or bleaching power of chloride of lime. [ 1913 Webster ]

n. The process of testing the bleaching power of any combination of chlorine. [ 1913 Webster ]

n. [ Gr. chlwro`s light green + E. opal. ] (Min.) A massive mineral, greenish in color, and opal-like in appearance. It is essentially a hydrous silicate of iron. [ 1913 Webster ]

a. [ Chlorine + peptic. ] (Physiol. Chem.) Of or pertaining to an acid more generally called pepsin-hydrochloric acid. [ 1913 Webster ]

n. [ Gr. chlwro`s light green + &unr_; to show: cf. F. chlorophane. ] 1. (Min.) A variety of fluor spar, which, when heated, gives a beautiful emerald green light. [ 1913 Webster ]

2. (Physiol.) The yellowish green pigment in the inner segment of the cones of the retina. See Chromophane. [ 1913 Webster ]

n. [ Gr. chlwro`s light green + fy`llon leaf: cf. F. chlorophylle. ] 1. (Bot.) Literally, leaf green; a green granular matter formed in the cells of the leaves (and other parts exposed to light) of plants, to which they owe their green color, and through which all ordinary assimilation of plant food takes place. Similar chlorophyll granules have been found in the tissues of the lower animals. [ Written also chlorophyl. ] [ 1913 Webster ]

2. any of a group of green pigments found in photosynthetic organisms. Chlorophyll a and chlorophyll b are found in higher plants and green algae; chlorophyll c is found in certain types of marine algae. Chemically, it has a porphyrin ring with a magnesium ion bound to the four central nitrogens, and has a phytyl side chain. It is essential for photosynthesis in most plants. Chlorophyll a has formula C55H72N4O5Mg.
Syn. -- chlorophyll. [ WordNet 1.5 ]

n. [ Pref. chloro- + Gr. &unr_; to mold, form. ] (Biol.) A plastid containing chlorophyll, developed only in cells exposed to the light. Chloroplasts are minute flattened granules, usually occurring in great numbers in the cytoplasm near the cell wall, and consist of a colorless ground substance saturated with chlorophyll pigments. Under light of varying intensity they exhibit phototactic movements. In animals chloroplasts occur only in certain low forms. [ Webster 1913 Suppl. ]

n. [ Gr. chlwro`s light green + E. plastid. ] (Bot.) A granule of chlorophyll; -- also called chloroleucite. [ 1913 Webster ]

a. (Chem.) See Platinichloric. [ 1913 Webster ]

‖n. [ NL., fr. Gr. chlwro`s light green: cf. F. chlorose. ] 1. (Med.) The green sickness; an anæmic disease of young women, characterized by a greenish or grayish yellow hue of the skin, weakness, palpitation, etc. [ 1913 Webster ]

2. (Bot.) A disease in plants, causing the flowers to turn green or the leaves to lose their normal green color. [ 1913 Webster ]

a. [ Cf. F. chlorotique. ] Pertaining to, or affected by, chlorosis. [ 1913 Webster ]

a. [ See Chlorine. ] 1. Of, pertaining to, or derived from, chlorine; -- said of those compounds of chlorine in which this element has a valence of three, the next lower than in chloric compounds; as, chlorous acid, HClO2. [ 1913 Webster ]

2. (Chem. Physics) Pertaining to, or resembling, the electro-negative character of chlorine; hence, electro-negative; -- opposed to basylous or zincous. [ Obs. ] [ 1913 Webster ]

n. a genus of deciduous trees of India and Sri Lanka.
Syn. -- genus Chloroxylon. [ WordNet 1.5 ]

a. [ Pref. hypo- + chlorous. ] (Chem.) Pertaining to, or derived from, chlorine having a valence lower than in chlorous compounds. [ 1913 Webster ]

Hypochlorous acid (Chem.), an acid derived from chlorine, not known in a pure state, but forming various salts, called hypochlorites. [ 1913 Webster ]