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Thionaphthene
n.
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A double benzene and thiophene nucleus, C8H6S, analogous to naphthalene, and like it the base of a large series of derivatives.
Thionic
a.
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Of or pertaining to sulphur; containing or resembling sulphur; specifically, designating certain of the thio compounds; as, the thionic acids. Cf. Dithionic, Trithionic, Tetrathionic, etc.
Thionine
n.
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An artificial red or violet dyestuff consisting of a complex sulphur derivative of certain aromatic diamines, and obtained as a dark crystalline powder; -- called also phenylene violet.
Thionol
n.
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A red or violet dyestuff having a greenish metallic luster. It is produced artificially, by the chemical dehydration of thionine, as a brown amorphous powder.
Thionoline
n.
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A beautiful fluorescent crystalline substance, intermediate in composition between thionol and thionine.
Thionyl
n.
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The hypothetical radical SO, regarded as an essential constituent of certain sulphurous compounds; as, thionyl chloride.
Thiophene
n.
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A sulphur hydrocarbon, C4H4S, analogous to furfuran and benzene, and acting as the base of a large number of substances which closely resemble the corresponding aromatic derivatives.
Thiophenic
a.
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Of, pertaining to, or derived from, thiophene; specifically, designating a certain acid analogous to benzoic acid.
Thiophthene
n.
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A double thiophene nucleus, C6H4S2, analogous to thionaphthene, and the base of a large series of compounds.
Thiosulphate
n.
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A salt of thiosulphuric acid; -- formerly called hyposulphite.
Thiosulphuric
a.
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Of, pertaining to, or designating, an unstable acid, H2S2O3, analogous to sulphuric acid, and formerly called hyposulphurous acid.
Thiotolene
n.
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A colorless oily liquid, C4H3S.CH3, analogous to, and resembling, toluene; -- called also methyl thiophene.
Thioxene
n.
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Any one of three possible metameric substances, which are dimethyl derivatives of thiophene, like the xylenes from benzene.
Third
a.
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Next after the second; coming after two others; -- the ordinal of three; as, the third hour in the day.
Third
a.
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Constituting or being one of three equal parts into which anything is divided; as, the third part of a day.
Third
n.
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The quotient of a unit divided by three; one of three equal parts into which anything is divided.
Third
n.
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The sixtieth part of a second of time.
Third
n.
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The third tone of the scale; the mediant.
Third
n.
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The third part of the estate of a deceased husband, which, by some local laws, the widow is entitled to enjoy during her life.
Third-borough
n.
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An under constable.
Thirdings
n. pl.
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The third part of the corn or grain growing on the ground at the tenant's death, due to the lord for a heriot, as within the manor of Turfat in Herefordshire.
Thirdly
adv.
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In the third place.
Third-penny
n.
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A third part of the profits of fines and penalties imposed at the country court, which was among the perquisites enjoyed by the earl.
Thirled
imp. & p. p.
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of Thirl
Thirling
p. pr. & vb. n.
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of Thirl
Thirl
v. t.
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To bore; to drill or thrill. See Thrill.
Thirlage
n.
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The right which the owner of a mill possesses, by contract or law, to compel the tenants of a certain district, or of his sucken, to bring all their grain to his mill for grinding.
Thirst
n.
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A sensation of dryness in the throat associated with a craving for liquids, produced by deprivation of drink, or by some other cause (as fear, excitement, etc.) which arrests the secretion of the pharyngeal mucous membrane; hence, the condition producing this sensation.
Thirst
n.
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Fig.: A want and eager desire after anything; a craving or longing; -- usually with for, of, or after; as, the thirst for gold.
Thirsted
imp. & p. p.
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of Thirst