before a vowel thorac-, combining form of Gr. θώρᾱξ, θωρᾱκ-, THORAX; used in forming terms of anatomy, zoology, etc. Thoracabdominal a. = thoracico-abdominal. Thoracacromial a. = thoracico-acromial. Thoracentesis = thoracocentesis. ǁ Thoracetron [Gr. ἧτρον abdomen], Owen’s name of the second division of the body in certain crustaceans, as the king-crab (cf. PLEON1); hence Thoracetral a., of or pertaining to the thoracetron, Thoracoacromial = THORACICO-ACROMIAL. ǁ Thoracocentesis [Gr. κέντησις pricking], the perforation of the chest-wall to draw off morbid accumulations of fluid. ǁ Thoracocyllosis [Gr. κύλλωσις curvature], deformity of the thorax (Billings, 1890). ǁ Thoracocyrtosis [Gr. κύρτωσις crookedness], abnormal curvature of the chest. ǁ Thoracodynia [Gr. ὀδύνη pain], pain in the thorax; also in English form † Thoracodyne. Thoracometer, an apparatus for measuring the movement of the chest-wall in respiration; a stethometer. Thoracopagous a., pertaining to or of the nature of a thoracopagus. ǁ Thoracopagus [Gr. πάγος that which is fixed, f. πηγνύναι to fasten], a double or twin monster joined at the thorax. Thoracopathy, disease in the thoracic region. Thoracoplasty [-PLASTY]: see quot. Thoracoscope [-SCOPE], an instrument for sounding the chest, a stethoscope. Thoracoscopy, the sounding or exploration of the chest. Thoracostracous [Gr. ὄστρακον hard shell] a., of or pertaining to the Thoracostraca, a division of crustaceans, including the Decapoda and other series, having a cephalo-thoracic shield and (usually) stalked eyes. ǁ Thoracotheca Entom. [THECA], that part of the pupa-case which covers the thorax of the pupa (Cent. Dict., 1891). Thoracotomy [Gr. τομή cutting], incision into the thorax.
1891. Cent. Dict., *Thoracabdominal.
1899. Syd. Soc. Lex., Thoracabdominal, pertaining to, or common to, the thorax and abdomen.
1887. Coues, in Cent. Dict., *Thoracacromial.
1857. Dunglison, Med. Lex., *Thoracentesis.
1866. A. Flint, Princ. Med. (1880), 147. Thoracentesis … is admissible whenever the pleural cavity remains filled with liquid after a brief trial of the measures designed to promote absorption.
1872. Owen, in Trans. Linnæan Soc., XXVIII. 467. The succeeding *thoracetral appendages are 4-articulate. Ibid., 465. This segment … belongs to the category of ‘thoracetral’ plates: it is cephaletral only by confluence. Ibid., 463. I venture to hope that the term ‘cephaletron’ may meet with some acceptance…, and that the term *‘thoracetron’ may have the same fortune in relation to the second division of the body. Ibid., 467. The ventral surface of the thoracetron.
1857. Dunglison, Med. Lex., *Thoracocentesis.
1903. Westm. Gaz., 10 July, 7/1. Professor Rossoni … and Dr. Mazzoni went to the Vatican at half-past eight this morning, and repeated the operation of thoraco-centesis.
1860. Mayne, Expos. Lex., *Thoracocyrtosis.
1857. Dunglison, Med. Lex., *Thoracodyne, pleurodynia.
1860. Mayne, Thoracodyne, Thoracodynia.
1877. S. Gee, Auscult. & Percuss., I. ii. (ed. 2), 35. Instruments which have been invented for registering the respiratory movements and powers: stethographs, stethometers, *thoracometers, spirometers, pneumatometers.
1886. A. Gamgee, in Encycl. Brit., XX. 477/1. Apparatuses for measuring the excursion of a given point of the chest wall during respiration are called thoracometers or stethometers.
1894. Bateson, Variation, xxiv. 560. Eichwald examined the evidence as to *thoracopagous double monsters.
1902. Brit. Med. Jrnl., 15 March, 672. The Greeks in their deity-construction seem to have made no use of … the various types of united twins—for example, the thoracopagous and dicephalic monstrosities.
1894. Bateson, Variation, xxiv. 560. There are … a few cases even of *thoracopagi where neither body exhibits any transposition.
1890. Billings, Nat. Med. Dict., *Thoracoplasty, plastic operation on the thorax, as excision of portions of ribs to close an abscess; Estlander’s operation.
[1857. Dunglison, Med. Lex., *Thoracoscopium, stethoscope.]
1895. Funk’s Standard Dict., Thoracoscope.
1890. Billings, Nat. Med. Dict., *Thoracoscopy, exploration of the chest.
1902. Cassell’s Encycl. Dict., Suppl., *Thoracostracous.
1857. Dunglison, Med. Lex., *Thoracotomy, thoracocentesis.
1890. Billings, Nat. Med. Dict., Thoracotomy, cutting into the chest; Estlander’s operation.
