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Thorax   /θˈɔræks/   Listen
Thorax

noun
(pl. thoraces, thoraxes)
1.
The middle region of the body of an arthropod between the head and the abdomen.
2.
The part of the human torso between the neck and the diaphragm or the corresponding part in other vertebrates.  Synonyms: chest, pectus.
3.
Part of an insect's body that bears the wings and legs.



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"Thorax" Quotes from Famous Books



... French have the expression "Naked as a worm," to point to the lack of any defensive covering. Now the Lampyris is clothed, that is to say, he wears an epidermis of some consistency; moreover, he is rather richly coloured: his body is dark brown all over, set off with pale pink on the thorax, especially on the lower surface. Finally, each segment is decked at the hinder edge with two spots of a fairly bright red. A costume like this was never worn by ...
— The Glow-Worm and Other Beetles • Jean Henri Fabre

... the hot regions of the five continents. About two hundred species have been distinguished. Some are quite small, others six inches long. Some are dark-brown, others reddish, and others again straw-yellow, as in Baluchistan. The body consists of a head and thorax without joints, and a hinder part of seven articulated rings, besides six tail rings. The last ring, the thirteenth, contains two poison glands and is furnished with a sting as fine as a needle. The poison is a fluid ...
— From Pole to Pole - A Book for Young People • Sven Anders Hedin

... to twenty-two, thirteen, and even fewer; and accompanying this there is a shortening or integration of the whole body, reaching its extreme in crabs and spiders. Similarly with the development of an individual crustacean or insect. The thorax of a lobster, which, in the adult, forms, with the head, one compact box containing the viscera, is made up by the union of a number of segments which in the embryo were separable. The thirteen distinct divisions seen ...
— Essays: Scientific, Political, & Speculative, Vol. I • Herbert Spencer

... is a mathematician and knows something about magnetism, he suggested making a very thin needle into a magnet; then breaking it into very short pieces, which would still be magnetic, and fastening one of these pieces with some cement on the thorax of the insect to be ...
— More Letters of Charles Darwin - Volume I (of II) • Charles Darwin

... year or eighteen months of life, the rounded infantile shape of body persists. The limbs are short and thick, the cheeks full and rounded, the thorax and pelvis are small, the abdomen relatively large and full. The great adipose deposit in the subcutaneous tissue serves as a depot in which water is stored in large amounts. In the healthy child of normal development by the end of the second year a great change has taken place. The shape ...
— The Nervous Child • Hector Charles Cameron

... rugose, some of the rugose punctures with pale greenish white scales; an abbreviated longitudinal impressed line down the front. Beak short and thick (somewhat as in Pachyrhynchus cumingii, Waterhouse). Thorax irregularly and somewhat coarsely punctured, the sides somewhat wrinkled in front, the punctures scaled, a triangular depression on the posterior part of thorax, the bottom is covered with scales, at least in some specimens, and there are three spots similarly scaled and placed somewhat transversely: ...
— Voyage Of H.M.S. Rattlesnake, Vol. 2 (of 2) • John MacGillivray

... are shown the male and female of the Hercules beetle (Dynastes hercules) of Brazil. The family of the Dynastidae comprises some of the largest and most beautiful of the beetle race, and all of them are remarkable for enormous developments of the thorax and head. They are all large bodied and stout limbed, and by their great strength abundantly justify their generic name, Dynastes, which is from the Greek and signifies powerful. The larvae of these beetles inhabit and feed upon decaying trees and other ...
— Scientific American, Volume XLIII., No. 25, December 18, 1880 • Various

... Bihan," I said; "by a stretch of imagination one can make out a skull on the thorax of a certain big ...
— Famous Modern Ghost Stories • Various

... Correspondent of 'the Field' records an experiment which he made with a wasp. 'Having,' he says, 'severed a wasp in two pieces, I found that the head and thorax with the uninjured wings retained full vitality.... It tried to fly, but evidently lacked the necessary balance through the loss of the abdomen. To test the matter further, I cut out an artificial tail from a piece of thin cardboard, as nearly ...
— Punch, Or The London Charivari, Vol. 99., Nov. 1, 1890 • Various

... observed to be spongy, separated from the teeth and reverted, bleeding, and in various parts presenting the livid appearance of scorbutic gums. At the same period arose pains of an anomalous description, and of considerable severity about the shoulders and thorax. These gradually yielded as he recovered strength, but were succeeded by other pains and tenderness of the bones and muscles of the thighs and legs. The citric acid was given to him freely from the beginning, until it interfered ...
— Journal of the Third Voyage for the Discovery of a North-West Passage • William Edward Parry

... main agent, both in ordinary and extraordinary respiration. In its quiescent state it presents its convex surface towards the thorax, and its concave one towards the abdomen. The anterior convexity abuts upon the lungs; the posterior concavity is occupied by some of ...
— The Dog - A nineteenth-century dog-lovers' manual, - a combination of the essential and the esoteric. • William Youatt

... pitchy brown, beneath it is yellowish and hairy; the margin of the thorax is yellowish, its disk has many short rust-coloured hairs, the elytra have 9 longitudinal impressed lines, the spaces between transversely striolated ...
— Discoveries in Australia, Volume 1. • J Lort Stokes

... is fifty-three. My ancestors had all melted away with hereditary consumption. At the age of twenty, I began to be afflicted with pain in different parts of the thorax, and other premonitory symptoms of phthisis pulmonalis. Soon after this, my mother and eldest sister died with the disease. For myself, having a severe attack of ague and fever, all my consumptive symptoms became greatly aggravated; the pain was ...
— Vegetable Diet: As Sanctioned by Medical Men, and by Experience in All Ages • William Andrus Alcott

... into the thorax," he explained. "When one has studied under the Swami, as I have, he gains control over all his different muscles, voluntary and involuntary. He can, to a great extent, cut off or increase the nerve force in any muscle. Simple tricks ...
— The Way of a Man • Emerson Hough

... is in form like an inverted bowl (Fig. 8). It forms the floor of the thorax (chest) and the roof of the abdomen. It is attached by a strong tendon to the spinal column behind, and to the walls of the thorax at its lowest part, which is below the ribs. In front its attachment is to the cartilage at the pit of the stomach. It also connects with ...
— Resonance in Singing and Speaking • Thomas Fillebrown



Words linked to "Thorax" :   trunk, pectoral, thoracic vein, chest cavity, breast, vena thoracica, male chest, torso, female chest, pectoralis, bust, body part, body, pecs, gallbladder, rib cage, craniate, area of cardiac dullness, sternum, pectoral muscle, breastbone, pectus, musculus pectoralis, thoracic aorta, insect, gall bladder, arthropod, thoracic cavity, vertebrate



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