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Thomist
n.
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A follower of Thomas Aquinas. See Scotist.
Thomite
n.
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A Thomaean.
Thomsenolite
n.
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A fluoride of aluminium, calcium, and sodium occurring with the cryolite of Greenland.
Thomsen's disease
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An affection apparently congenital, consisting in tonic contraction and stiffness of the voluntary muscles occurring after a period of muscular inaction.
Thomsonian
a.
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Of or pertaining to Thomsonianism.
Thomsonian
n.
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A believer in Thomsonianism; one who practices Thomsonianism.
Thomsonianism
n.
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An empirical system which assumes that the human body is composed of four elements, earth, air, fire, and water, and that vegetable medicines alone should be used; -- from the founder, Dr. Samuel Thomson, of Massachusetts.
Thomsonite
n.
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A zeolitic mineral, occurring generally in masses of a radiated structure. It is a hydrous silicate of aluminia, lime, and soda. Called also mesole, and comptonite.
Thong
n.
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A strap of leather; especially, one used for fastening anything.
Thooid
a.
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Of or pertaining to a group of carnivores, including the wovels and the dogs.
Thor
n.
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The god of thunder, and son of Odin.
Thoracentesis
n.
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The operation of puncturing the chest wall so as to let out liquids contained in the cavity of the chest.
Thoracic
a.
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Of or pertaining to the thorax, or chest.
Thoracic
n.
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One of a group of fishes having the ventral fins placed beneath the thorax or beneath the pectorial fins.
Thoracica
n. pl.
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A division of cirripeds including those which have six thoracic segments, usually bearing six pairs of cirri. The common barnacles are examples.
Thoracometer
n.
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Same as Stethometer.
Thoracoplasty
n.
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A remodeling or reshaping of the thorax; especially, the operation of removing the ribs, so as to obliterate the pleural cavity in cases of empyema.
Thoracostraca
a.
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An extensive division of Crustacea, having a dorsal shield or carapec/ //niting all, or nearly all, of the thoracic somites to the head. It includes the crabs, lobsters, shrimps, and similar species.
Thoracotomy
n.
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The operation of opening the pleural cavity by incision.
Thoral
a.
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Of or pertaining to a bed.
Thorax
n.
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The part of the trunk between the neck and the abdomen, containing that part of the body cavity the walls of which are supported by the dorsal vertebrae, the ribs, and the sternum, and which the heart and lungs are situated; the chest.
Thorax
n.
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The middle region of the body of an insect, or that region which bears the legs and wings. It is composed of three united somites, each of which is composed of several distinct parts. See Illust. in Appendix. and Illust. of Coleoptera.
Thorax
n.
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The second, or middle, region of the body of a crustacean, arachnid, or other articulate animal. In the case of decapod Crustacea, some writers include under the term thorax only the three segments bearing the maxillipeds; others include also the five segments bearing the legs. See Illust. in Appendix.
Thorax
n.
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A breastplate, cuirass, or corselet; especially, the breastplate worn by the ancient Greeks.
Thoria
n.
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A rare white earthy substance, consisting of the oxide of thorium; -- formerly called also thorina.
Thoric
a.
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Of or pertaining to thorium; designating the compounds of thorium.
Thorite
n.
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A mineral of a brown to black color, or, as in the variety orangite, orange-yellow. It is essentially a silicate of thorium.
Thorium
n.
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A metallic element found in certain rare minerals, as thorite, pyrochlore, monazite, etc., and isolated as an infusible gray metallic powder which burns in the air and forms thoria; -- formerly called also thorinum. Symbol Th. Atomic weight 232.0.
Thorn
n.
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A hard and sharp-pointed projection from a woody stem; usually, a branch so transformed; a spine.
Thorn
n.
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Any shrub or small tree which bears thorns; especially, any species of the genus Crataegus, as the hawthorn, whitethorn, cockspur thorn.