Lexic.us

Definition of Thorax

1. Noun. The middle region of the body of an arthropod between the head and the abdomen.

2. Noun. The part of the human torso between the neck and the diaphragm or the corresponding part in other vertebrates.

3. Noun. Part of an insect's body that bears the wings and legs.

Definition of Thorax

1. n. 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 vertebræ, the ribs, and the sternum, and which the heart and lungs are situated; the chest.

Definition of Thorax

1. Noun. the middle of three distinct divisions in an insect, crustacean or arachnid body ¹

2. Noun. the region of the mammalian body between the neck and abdomen as well as the cavity containing the heart and lungs ¹

¹ Source: wiktionary.com

Definition of Thorax

1. the part of the body between the neck and the abdomen [n -RACES or -RAXES] : THORACAL, THORACIC [adj]

Medical Definition of Thorax

1. 1. 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. In mammals the thoracic cavity is completely separated from the abdominal by the diaphragm, but in birds and many reptiles the separation is incomplete, while in other reptiles, and in amphibians and fishes, there is no marked separation and no true thorax. 2. 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.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. 3. A breastplate, cuirass, or corselet; especially, the breastplate worn by the ancient Greeks. Origin: L, fr. Gr. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Thorax

thoracoplasties thoracoplasty thoracopneumoplasty thoracoscope thoracoscopic surgery thoracoscopies thoracoscopy thoracostenosis thoracostomy thoracostomy tube

thoracostraca thoracotomies thoracotomy thoradelphus thorax (current term) thoraxes thorbastnasite thoreaulite thoreon thoria

thorian thorianite thorianites thorias thoriate thoriated thoriates thoriating thoric

Literary usage of Thorax

Below you will find example usage of this term as found in modern and/or classical literature:

1. Proceedings of the Academy of Natural Sciences of Philadelphia by Academy of Natural Sciences of Philadelphia (1865)
"Hind angles of thorax slightly obtuse, not rounded ; (tibiae and tarsi ... Hind angles of thorax obtuse ; scarcely rounded at tip ; base punctured ; thorax ..."

2. Transactions of the American Entomological Society by American Entomological Society (1879)
"thorax vider than the base of the elytra, margin usually well defined, lateral and visible in ... thorax not wider than the elytra, margin extremely narrow, ..."

3. A Dictionary of Greek and Roman Antiquities by William Smith (1891)
"Probably the was a girdle round the lower part of the thorax, helping to keep the two yva\a together, and itself kept in position by the projecting rim at ..."

4. Anatomy, Descriptive and Surgical by Henry Gray (1901)
"THE LYMPHATICS OF THE thorax. The Lymphatic Glands of the Thoracic Wall are ... The Superficial Lymphatic Vessels of the Front of the thorax run across the ..."

5. The Encyclopaedia Britannica: A Dictionary of Arts, Sciences, and General by Thomas Spencer Baynes (1888)
"How is dilatation of the thorax effected t It has been pointed out that the rib-planes decline from the horizontal in two directions, viz., ..."

6. An Introduction to Entomology by John Henry Comstock (1920)
"The thorax is the second or intermediate region of the body; it is the region that in nymphs, ... The first segment of the thorax, the one next the head, ..."

7. Monographic Medicine by William Robie Patten Emerson, Guido Guerrini, William Brown, Wendell Christopher Phillips, John Whitridge Williams, John Appleton Swett, Hans Günther, Mario Mariotti, Hugh Grant Rowell (1916)
"Examination of the Muscles, Bones and Joints of the thorax The recognition of fracture of the ribs or of the sternum belongs to surgery. ..."

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