duct

Definitions of duct

n an enclosed conduit for a fluid

Types:: show 6 types...; hide 6 types...; air-intake
a duct that admits air to be mixed with fuel; air duct, air passage, airway
a duct that provides ventilation (as in mines); register
an air passage (usually in the floor or a wall of a room) for admitting or excluding heated air from the room; breather, schnorchel, schnorkel, snorkel, snorkel breather
air passage provided by a retractable device containing intake and exhaust pipes; permits a submarine to stay submerged for extended periods of time; upcast
air passage consisting of a ventilation shaft through which air leaves a mine; ventilation shaft
a shaft in a building; serves as an air passage for ventilation

Type of:: conduit
a passage (a pipe or tunnel) through which water or electric wires can pass

n a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance

“the tear duct was obstructed”

Synonyms:: canal, channel, epithelial duct

Types:: show 41 types...; hide 41 types...; pore
any small opening in the skin or outer surface of an animal; canalis vertebralis, spinal canal, vertebral canal
the canal in successive vertebrae through which the spinal cord passes; ductule, ductulus
a very small duct; canaliculus
a small canal or duct as in some bones and parts of plants; Schlemm's canal, canal of Schlemm, sinus venosus sclerae
a circular canal in the eye that drains aqueous humor from the anterior chamber of the eye into the anterior ciliary veins; sinus, venous sinus
a wide channel containing blood; does not have the coating of an ordinary blood vessel; lachrymal duct, lacrimal duct, tear duct
any of several small ducts that carry tears from the lacrimal glands; nasolacrimal duct
a duct that carries tears from the lacrimal sac to the nasal cavity; Haversian canal
any of the many tiny canals that contain blood vessels and connective tissue and that form a network in bone; hepatic duct
the duct that drains bile from the liver; canalis inguinalis, inguinal canal
oblique passage through the lower abdominal wall; in males it is the passage through which the testes descend into the scrotum and it contains the spermatic cord; in females it transmits the round ligament of the uterus; bile duct, common bile duct
a duct formed by the hepatic and cystic ducts; opens into the duodenum; pancreatic duct
a duct connecting the pancreas with the intestine; lymph vessel, lymphatic vessel
a vascular duct that carries lymph which is eventually added to the venous blood circulation; salivary duct
a duct through which saliva passes from the salivary gland into the mouth; Sylvian aqueduct, aqueductus cerebri, cerebral aqueduct
a canal connecting the third and fourth ventricles; ureter
either of a pair of thick-walled tubes that carry urine from the kidney to the urinary bladder; urethra
duct through which urine is discharged in most mammals and which serves as the male genital duct; canalis cervicis uteri, cervical canal
a spindle-shaped canal extending from the uterus to the vagina; umbilical, umbilical cord
membranous duct connecting the fetus with the placenta; vagina
the lower part of the female reproductive tract; a moist canal in female mammals extending from the labia minora to the uterus; epididymis
a convoluted tubule in each testis; carries sperm to vas deferens; ductus deferens, vas deferens
a duct that carries spermatozoa from the epididymis to the ejaculatory duct; ejaculatory duct
a part of the seminal duct formed by the duct from the seminal vesicle and the vas deferens; passes through the prostate gland; cartilaginous tube
a duct with cartilaginous walls; bronchiole
any of the smallest bronchial ducts; ending in alveoli; GI tract, alimentary canal, alimentary tract, digestive tract, digestive tube, gastrointestinal tract
tubular passage of mucous membrane and muscle extending about 8.3 meters from mouth to anus; functions in digestion and elimination; lactiferous duct
ducts of the mammary gland that carry milk to the nipple; cavernous sinus, sinus cavernosus
either of a pair of large venous sinuses in the cranial cavity; coronary sinus, sinus coronarius
a short sinus receiving most of the veins of the heart; empties into the right atrium; sigmoid sinus, sinus sigmoideus
an S-shaped dural sinus on the temporal and occipital bones; sinus rectus, straight sinus, tentorial sinus
an unpaired sinus of the dura mater; sinus transversus, transverse sinus
a paired dural sinus; terminates in the sigmoid sinus; sweat duct
a small duct that conveys sweat from a sudoriferous gland to the surface of the skin; biliary ductule
excretory ducts of the liver; empty into the hepatic ducts; thoracic duct
the major duct of the lymphatic system; lacteal
any of the lymphatic vessels that convey chyle from the small intestine to the thoracic duct; bronchial tube, bronchus
either of the two main branches of the trachea; trachea, windpipe
membranous tube with cartilaginous rings that conveys inhaled air from the larynx to the bronchi; enteron
the alimentary canal (especially of an embryo or a coelenterate); ostiole
a small pore especially one in the reproductive bodies of certain algae and fungi through which spores pass

Type of:: passage, passageway
a path or channel or duct through or along which something may pass

n a continuous tube formed by a row of elongated cells lacking intervening end walls

Types:: laticifer
a plant duct containing latex

Type of:: plant part, plant structure
any part of a plant or fungus

n an enclosed conduit for a fluid

n a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance

n a continuous tube formed by a row of elongated cells lacking intervening end walls

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