| uralitization | <geology> The change of pyroxene to amphibole by paramorphism. Source: Websters Dictionary (01 Mar 1998) |
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| uramil | <chemistry> Murexan. Source: Websters Dictionary (01 Mar 1998) |
| uramustine | <chemical> Nitrogen mustard derivative of uracil. It is a alkylating antineoplastic agent that is used in lymphatic malignancies, and causes mainly gastrointestinal and bone marrow damage. Pharmacological action: antineoplastic agent, alkylating. Chemical name: 2,4(1H,3H)-Pyrimidinedione, 5-(bis(2-chloroethyl)amino)- (12 Dec 1998) |
| uran-ochre | <chemical> A yellow, earthy incrustation, consisting essentially of the oxide of uranium, but more or less impure. Origin: Cf. F. Uranochre. Source: Websters Dictionary (01 Mar 1998) |
| uran-utan | <zoology> The orang-utang Source: Websters Dictionary (01 Mar 1998) |
| uranate | <chemistry> A salt of uranic acid. Source: Websters Dictionary (01 Mar 1998) |
| urania | 1. One of the nine Muses, daughter of Zeus by Mnemosyne, and patron of astronomy. 2. <zoology> A genus of large, brilliantly coloured moths native of the West Indies and South America. Their bright coloured and tailed hind wings and their diurnal flight cause them to closely resemble butterflies. Origin: L, from Gr, i. E, the Heavenly, fr. Heavenly, fr. Heaven. Source: Websters Dictionary (01 Mar 1998) |
| uranian | <astronomy> Of or pertaining to the planet Uranus; as, the Uranian year. Source: Websters Dictionary (01 Mar 1998) |
| uranic | 1. Of or pertaining to the heavens; celestial; astronomical. "On I know not what telluric or uranic principles." (Carlyle) 2. <chemistry> Pertaining to, resembling, or containing uranium; specifically, designating those compounds in which uranium has a valence relatively higher than in uranous compounds. Source: Websters Dictionary (01 Mar 1998) |
| uranin | <chemistry> An alkaline salt of fluorescein, obtained as a brownish red substance, which is used as a dye; so called from the peculiar yellowish green fluorescence (resembling that of uranium glass) of its solutions. See Fluorescein. Source: Websters Dictionary (01 Mar 1998) |
| uraninite | <chemical> A mineral consisting chiefly of uranium oxide with some lead, thorium, etc, occurring in black octahedrons, also in masses with a pitchlike luster; pitchblende. Source: Websters Dictionary (01 Mar 1998) |
| uraniscochasm | Synonym: uranoschisis. Origin: uranisco-+ G. Chasma, cleft (05 Mar 2000) |
| uranisconitis | Inflammation of the palate. Synonym: uranisconitis. (05 Mar 2000) |
| uraniscoplasty | <surgery> The process of forming an artificial palate. Origin: Gr. Top of a tent, plate (fr. Sky) + -plasty. Source: Websters Dictionary (01 Mar 1998) |
| uraniscorrhaphy | <surgery> Suture of the palate. See Staphyloraphy. Origin: Gr. The top of a tent, the palate (fr. Sky) + a seam. Source: Websters Dictionary (01 Mar 1998) |