Thalamocœle to That

(Thal"a*mo*cœle`) n. [Thalamic + Gr. koi^los hollow.] (Anat.) The cavity or ventricle of the thalamencephalon; the third ventricle.

(||Thal`a*moph"o*ra) n. pl. [NL., fr. Gr. qa`lamos chamber + to bear.] (Zoöl.) Same as Foraminifera.

(||Thal"a*mus) n.; pl. Thalami [L. thalamus chamber, Gr. qa`lamos.]

1. (Anat.) A mass of nervous matter on either side of the third ventricle of the brain; — called also optic thalamus.

2. (Bot.) (a) Same as Thallus. (b) The receptacle of a flower; a torus.

(Tha*las"si*an) n. [From Gr. the sea.] (Zoöl.) Any sea tortoise.

(Tha*las"sic) a. (Geol.) Of or pertaining to the sea; — sometimes applied to rocks formed from sediments deposited upon the sea bottom.

(Thal`as*sin"i*an) n. (Zoöl.) Any species of Thalaassinidæ, a family of burrowing macrurous Crustacea, having a long and soft abdomen.

(Thal`as*sog"ra*phy) n. [Gr. sea + -graphy.] The study or science of the life of marine organisms. Agassiz.

(||Tha"ler) n. [G. See Dollar.] A German silver coin worth about three shillings sterling, or about 73 cents.

(Tha*li"a) n. [L., fr. Gr. Qa`leia, originally, blooming, luxuriant, akin to qa`llein to be luxuriant.] (Class. Myth.) (a) That one of the nine Muses who presided over comedy. (b) One of the three Graces. (c) One of the Nereids.

(||Tha`li*a"ce*a) n. pl. [NL. See Thalia.] (Zoöl.) A division of Tunicata comprising the free- swimming species, such as Salpa and Doliolum.

(Tha*li"an) a. Of or pertaining to Thalia; hence, of or pertaining to comedy; comic.

(Thal"late) n. (Chem.) A salt of a hypothetical thallic acid.

(Thal"lene) n. (Chem.) A hydrocarbon obtained from coal-tar residues, and remarkable for its intense yellowish green fluorescence.

(Thal"lic) a. (Chem.) Of or pertaining to thallium; derived from, or containing, thallium; specifically, designating those compounds in which the element has a higher valence as contrasted with the thallous compounds; as, thallic oxide.

(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

  By PanEris using Melati.

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