| ENTHALPY | • enthalpy n. (Physics, chemistry) In thermodynamics, a measure of the heat content of a chemical or physical system. • ENTHALPY n. the total heat content of a system. |
| LETHALLY | • lethally adv. In a lethal manner, in manner which is or will be fatal. • LETHAL adv. causing death. |
| PHTHALIC | • phthalic adj. (Chemistry) of, relating to, or derived from naphthalene or phthalic acid. • PHTHALIC adj. pertaining to, or designating, a dibasic acid obtained by the oxidation of naphthalene and allied substances. |
| PHTHALIN | • phthalin n. (Chemistry) A colourless crystalline substance obtained by reduction from phthalein, into which it is… • phthalin n. (Chemistry) Any of the series of which phthalin proper is the type. • PHTHALIN n. a colourless crystalline compound obtained by reducing a phthalein. |
| THALAMIC | • thalamic adj. (Anatomy) Of or pertaining to the thalamus. • THALAMIC adj. pertaining to the thalamus. |
| THALAMUS | • thalamus n. (Neuroanatomy) Either of two large, ovoid structures of grey matter within the forebrain that relay… • thalamus n. (Botany) The receptacle of a flower; a torus. • thalamus n. A thallus. |
| THALLINE | • thalline adj. (Botany) Having a thallus. • thalline n. (Obsolete, medicine) Any of several derivatives of quinoline used as antipyretics. • THALLINE n. a chemical compound used for medicinal purposes. |
| THALLIUM | • thallium n. A metallic chemical element (symbol Tl) with atomic number 81: a gray post-transition metal that discolors… • thallium n. A single atom of this element. • THALLIUM n. a rare bluish-white metallic chemical element. |
| THALLOID | • thalloid adj. Of or pertaining to a thallus. • thalloid adj. (Botany) Of a plant, alga, or fungus lacking complex organization, especially lacking distinct stems… • THALLOID adj. having the form of a thallus. |
| THALLOUS | • thallous adj. (Inorganic chemistry) Of or pertaining to thallium, especially to thallium having a valency of 1. • THALLOUS adj. of or containing divalent thallium. |
| THALWEGS | • thalwegs n. Plural of thalweg. • THALWEG n. (German) a line following the lowest point of a valley; the middle of a navigable waterway used as boundary line, also TALWEG. |
| UNLETHAL | • unlethal adj. Not lethal. • UNLETHAL adj. not lethal. |
| ZENITHAL | • zenithal adj. Of or pertaining to a zenith. • zenithal adj. (Cartography, of a projection) azimuthal. • ZENITHAL adj. of the highest point. |