cuml

[Eng. cum(ene); -yl.] Chem.: An aromatic monad radical, having the formula C9H11. This radical has been wrongly called cumoyl, but it corresponds to benzyl (C7H9) and not to benzoyl (C7H9 CO)'. cumyl chloride, s. [CUMOYL CHLORIDE.] cum-l-am-Ide, 8. [CUM IN AMIDE.] cum-l-ēne, s. [Eng. cumyl; suff. -ene (Chem.).] (See the compound.) cumylene diamide, s. Chem.: C9H14N2, or C9H10(NH2)2. A crystalline base, obtained by distilling dinitro cum ene with acetic acid and iron filings. It melts at 47°. cum-1'-Ic, a . [Eng. cumyl; -ic.] Pertaining to cumyl; having cumyl in its composition. cumylic acid, s. CH3 CH3 Inorganic Chem .: C10H12O2, Or C6H2 CH3 COOH. IMG:content-1543.png:[ocr errors] Obtained by oxidizing durene (tetra-methyl-ben. zene, C6H2(CH3)4) with dilute nitric acid. It is separated from cumidic acid by distilling in a current of steam; is nearly insoluble in cold water; IMG:content-1544.png:[blocks in formation] A. As adjective : 1. Archæol.: Wedge-shaped. 2. Anat .: In the same sense as 1. There are cuneiform bones of the head and others of the foot. There are also cuneiform cartilages of the larynx. 3. Bot .: The same as CUNEATE (q. v.). B. As subst.: Cuneiform characters or writing (q. v.). (1) Cuneiform characters: Characters resembling a series of wedges or arrow heads, commonly found covering the surface of Ninevite sculptures. The first step toward the discovery of the cuneiform alphabet was taken by Prof. Grotefend as long ago as 1802. In a paper read during that year before the Royal Society of Göttingen, and published in the Literary Gazette of the same town, he announced that in examining Persian cuneiform he