Thal"line (?), a. (Bot.) Consisting of a thallus.
Thal"line (?), n. [Gr. &?; a young shoot or branch.] (Chem.) An artificial alkaloid of the quinoline series, obtained as a white crystalline substance, C10H13NO, whose salts are valuable as antipyretics; - - so called from the green color produced in its solution by certain oxidizing agents.
Thal"li*ous (?), a. (Chem.) See Thallous.
Thal"li*um (?), n. [NL., fr. Gr. &?; young or green shoot or branch, twig. So called from a characteristic bright green line in its spectrum.] (Chem.) A rare metallic element of the aluminium group found in some minerals, as certain pyrites, and also in the lead-chamber deposit in the manufacture of sulphuric acid. It is isolated as a heavy, soft, bluish white metal, easily oxidized in moist air, but preserved by keeping under water. Symbol Tl. Atomic weight 203.7.
Thal"lo*gen (?), n. [Gr. &?; young shoot or branch, frond + -gen.] (Bot.) One of a large class or division of the vegetable kingdom, which includes those flowerless plants, such as fungi, algæ, and lichens, that consist of a thallus only, composed of cellular tissue, or of a congeries of cells, or even of separate cells, and never show a distinction into root, stem, and leaf.
Thal"loid (?), a. [Thallus + - oid.] (Bot.) Resembling, or consisting of, thallus.
Thal"lo*phyte (?), n. [Gr. &?; young shoot + &?; plant.] (Bot.) Same as Thallogen.
Thal"lous (?), a. (Chem.) Of or pertaining to thallium; derived from, or containing, thallium; specifically, designating those compounds in which the element has a lower valence as contrasted with the thallic compounds. [Written also thallious.]
||Thal"lus (?), n.; pl. Thalli (#). [NL., fr. Gr. &?; young shoot or ||branch, frond.] (Bot.) A solid mass of cellular tissue, consisting of ||one or more layers, usually in the form of a flat stratum or ||expansion, but sometimes erect or pendulous, and elongated and ||branching, and forming the substance of the thallogens. || { Tham"muz (?), Tam"muz (?), } n. [Heb. thammz.] 1. A deity among the ancient Syrians, in honor of whom the Hebrew idolatresses held an annual lamentation. This deity has been conjectured to be the same with the Phœnician Adon, or Adonis. Milton.