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Duct   Listen
noun
Duct  n.  
1.
Any tube or canal by which a fluid or other substance is conducted or conveyed.
2.
(Anat.) One of the vessels of an animal body by which the products of glandular secretion are conveyed to their destination.
3.
(Bot.) A large, elongated cell, either round or prismatic, usually found associated with woody fiber. Note: Ducts are classified, according to the character of the surface of their walls, or their structure, as annular, spiral, scalariform, etc.
4.
Guidance; direction. (Obs.)






Collaborative International Dictionary of English 0.48








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"Duct" Quotes from Famous Books



... scavengers uniting together deposit their sweepings in one large canal, which is called the thoracic duct. The chyle scavengers arrive there just like the rest, and there our poor friend finds himself confounded for a moment with all the dross of the body, as sometimes happens to men who devote themselves ...
— The History of a Mouthful of Bread - And its effect on the organization of men and animals • Jean Mace

... that he would no more win the day with any such secretions than he could carry to account a course of sneezes or wilfully blowing his nose; a channel into which it was well known that very many tears, far more than were now wanted, flowed out of the eyes through the nasal duct; more indeed by a good deal than were ever known to flow downwards to the bottom of most pews at a funeral sermon. Monsieur Flitte of Alsace, however, protested that he was laughing out of pure fun, for his own amusement; ...
— The Uncollected Writings of Thomas de Quincey, Vol. 2 - With a Preface and Annotations by James Hogg • Thomas de Quincey

... engines or an auxiliary motor. These blowers were a continual source of trouble, and at the present day it has been arranged to collect air from the slip-stream of the propeller through a metal air scoop or blower-pipe and discharge it into an air duct which distributes it to ...
— British Airships, Past, Present, and Future • George Whale

... speaking, nutritive. The earth of the Ottomacs, composed of alumine and silex, furnishes probably nothing, or almost nothing, to the composition of the organs of man. These organs contain lime and magnesia in the bones, in the lymph of the thoracic duct, in the colouring matter of the blood, and in white hairs; they afford very small quantities of silex in black hair; and, according to Vauquelin, but a few atoms of alumine in the bones, though this is contained ...
— Equinoctial Regions of America V2 • Alexander von Humboldt

... same sort of tissue, it is not surprising that the two conditions are found in the same child. The catarrhal inflammation produced by adenoids in the nasal mucous membrane travels up the lachrymal duct and thus infects the ...
— Civics and Health • William H. Allen

... with her nail, and applied it to her nose. But with no effect. So digging out again a good quantity of it, she pressed it into her nostrils. Then suddenly she experienced a sensation in her nose as if some pungent matter had penetrated into the very duct leading into the head, and she sneezed five or six consecutive times, until tears rolled down from her eyes and ...
— Hung Lou Meng, Book II • Cao Xueqin

... the passage of water.] Conduit — N. conduit, channel, duct, watercourse, race; head race, tail race; abito^, aboideau^, aboiteau [Fr.], bito^; acequia^, acequiador^, acequiamadre^; arroyo; adit^, aqueduct, canal, trough, gutter, pantile; flume, ingate^, runner; lock-weir, ...
— Roget's Thesaurus of English Words and Phrases: Body • Roget

... indeed, the most usual termination of bad cases. After producing gangrene and necrosis in the gums and alveoli, and after the discharge becomes, as above stated, acrimonious, a gangrenous spot is not unfrequently found about the opening of the Stenonian duct, on the inside of the upper or lower lip, opposite the incisors, in some other part of the inside of the lip or cheek, or in more than one of these situations at the same time. Whether this be owing to excoriation from the discharge, or to some other cause, I cannot say; it has, however, ...
— North American Medical and Surgical Journal, Vol. 2, No. 3, July, 1826 • Various

... power above you still, Which, utterly incomprehensible, Is out of rivalry, which thus you can Love, though unloving all conceived by man— What need! And of—none the minutest duct To that out-nature, naught that would instruct And so let rivalry begin to live— But of a Power its representative Who, being for authority the same, Communication different, should claim A course, the first chosen, but the last revealed, This human ...
— The Poet's Poet • Elizabeth Atkins

... frequency with which the word "musk" forms part of the names of animals and plants which are by no means always nearly related. We have the musk-ox, the musky mole, several species called musk-rat, the musk-duct, the musk-beetle; while among plants which have received their names from a real or supposed musky odor are, besides several that are called musk-plant, the musk-rose, the musk-hyacinth, the musk-mallow, the musk-orchid, ...
— Studies in the Psychology of Sex, Volume 4 (of 6) • Havelock Ellis

... of the bird are in the small of the back close to the backbone, and there is a tube called the oviduct or egg-duct, leading from the ovary down to the lower end of the intestine, which it enters. There is no separate opening for the oviduct into the ...
— The Renewal of Life; How and When to Tell the Story to the Young • Margaret Warner Morley

... differs somewhat from other nasal prolongations, such as the snouts of certain insectivora, which are simply development of the nasal cartilages. The nasal cartilages in the Proboscidea serve merely as valves to the entrance of the bony nares, the trunk itself being only a pipe or duct leading to them, composed of powerful muscular and membranous tissue and consisting of two tubes, separated by a septum. The muscles in front (levatores proboscidis), starting from the frontal bone, run along ...
— Natural History of the Mammalia of India and Ceylon • Robert A. Sterndale

... elements produce this formidable effect—at least many years had passed since the last instance before 1829 had occurred. The theory of the phenomenon appeared to be pretty simple. Each spring is a sort of stone cistern, which, through its peculiar duct, sends forth to one part of the surface of the earth the water it receives from another. If, through inordinately heavy falls of rain, there be a great volume of water pressing on the entrance tubes, the ...
— Blackwood's Edinburgh Magazine, Volume 62, No. 382, October 1847 • Various

... resin ducts (Fig. 76, H), appearing in cross-section as oval openings surrounded by several concentric rows of cells, the innermost smaller and with denser contents. These secrete the resin that fills the duct and oozes out when the stem is cut. All of the cells of the bark contain more or ...
— Elements of Structural and Systematic Botany - For High Schools and Elementary College Courses • Douglas Houghton Campbell

... complained that when he blew his nose the left eye filled with water and air came out. The left nasal duct was however shown to be intact, as water injected by the canaliculus ...
— Surgical Experiences in South Africa, 1899-1900 • George Henry Makins

... foliaceous appendage on the back has long been known in the young of the common Water Slater (Asellus).* (* Leydig has compared this foliaceous appendage of the Water Slaters with the "green gland" or "shell-gland" of other crustacea, assuming that the green gland has no efferent duct and appealing to the fact that the two organs occur "in the same place." This interpretation is by no means a happy one. In the first place we may easily ascertain in Leucifer, as was also found to be the ...
— Facts and Arguments for Darwin • Fritz Muller

... and cities where many wires are to be carried along the same route, the wires are reduced in size, insulated by a covering over each, and assembled into a group. Such a bundle of insulated wires is called a cable. It may be drawn into a duct in the earth and be called an underground cable; it may be laid on the bottom of the sea or other water and be called a submarine cable; or it may be suspended on poles and be called an aerial cable. In the most general practice each wire is insulated from all others by a wrapping of paper ...
— Cyclopedia of Telephony & Telegraphy Vol. 1 - A General Reference Work on Telephony, etc. etc. • Kempster Miller



Words linked to "Duct" :   canalis vertebralis, lactiferous duct, vagina, Sylvian aqueduct, ductus deferens, common bile duct, Haversian canal, vascular plant, canal, Schlemm's canal, sweat duct, thoracic duct, canal of Schlemm, seminal duct, digestive tract, duct tape, digestive tube, bronchiole, epididymis, passage, pancreatic duct, canalis cervicis uteri, aqueductus cerebri, sinus, gastrointestinal tract, alimentary tract, vas deferens, cartilaginous tube, umbilical, venous sinus, epithelial duct, conduit, urethra, tracheophyte, sinus venosus sclerae, alimentary canal, canaliculus, cervical canal, lymphatic vessel, hepatic duct, plant structure, salivary duct, lacrimal duct, GI tract, vertebral canal, spinal canal, air passage, lymph vessel, air-intake, canalis inguinalis, laticifer, ureter



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