canal(redirected from nasolacrimal canal)
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1. An artificial waterway or artificially improved river used for travel, shipping, or irrigation.
2. Anatomy A tube, duct, or passageway.
3. Astronomy One of the faint, hazy markings resembling straight lines on early telescopic images of the surface of Mars.
tr.v. ca·nalled, ca·nal·ling, ca·nals or ca·naled or ca·nal·ing
1. To dig an artificial waterway through: canal an isthmus.
2. To provide with an artificial waterway or waterways.
[Partly French, channel, and partly Middle English, tube (from Medieval Latin canāle), both from Latin canālis, tube, channel, probably from canna, small reed; see cane.]
1. (Civil Engineering) an artificial waterway constructed for navigation, irrigation, water power, etc
2. (Zoology) any of various tubular passages or ducts: the alimentary canal.
3. (Botany) any of various elongated intercellular spaces in plants
4. (Astronomy) astronomy any of the indistinct surface features of Mars originally thought to be a network of channels but not seen on close-range photographs. They are caused by an optical illusion in which faint geological features appear to have a geometric structure
vb (tr) , -nals, -nalling or -nalled, -nals, -naling or -naled
5. (Civil Engineering) to dig a canal through
6. to provide with a canal or canals
[C15 (in the sense: pipe, tube): from Latin canālis channel, water pipe, from canna reed, cane1]
n., v. -nalled -naled, -nal•ling -nal•ing. n.
1. an artificial waterway for navigation, irrigation, etc.
2. a tubular passage for food, air, etc., in an animal or plant; duct.
3. channel; watercourse.
4. one of the long, dark lines on the planet Mars, as viewed from Earth.v.t.
5. to make a canal through.
[1400–50; late Middle English: waterpipe, tubular passage < Latin canālis]
canal- The holes in a sponge are called canals.
See also related terms for holes.
Past participle: canalled
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|Noun||1.||canal - (astronomy) an indistinct surface feature of Mars once thought to be a system of channels; they are now believed to be an optical illusion|
astronomy, uranology - the branch of physics that studies celestial bodies and the universe as a whole
channel - a deep and relatively narrow body of water (as in a river or a harbor or a strait linking two larger bodies) that allows the best passage for vessels; "the ship went aground in the channel"
|2.||canal - a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance; "the tear duct was obstructed"; "the alimentary canal"; "poison is released through a channel in the snake's fangs"|
pore - any small opening in the skin or outer surface of an animal
passageway, passage - a path or channel or duct through or along which something may pass; "the nasal passages"
canalis vertebralis, spinal canal, vertebral canal - the canal in successive vertebrae through which the spinal cord passes
canaliculus - a small canal or duct as in some bones and parts of plants
canal of Schlemm, Schlemm's canal, 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
venous sinus, sinus - a wide channel containing blood; does not have the coating of an ordinary blood vessel
ampulla - the dilated portion of a canal or duct especially of the semicircular canals of the ear
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
aqueductus cerebri, cerebral aqueduct, Sylvian 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
vagina - the lower part of the female reproductive tract; a moist canal in female mammals extending from the labia minora to the uterus; "the vagina receives the penis during coitus"; "the vagina is elastic enough to allow the passage of a fetus"
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
seminal duct - the efferent duct of the testis in man
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
alimentary canal, alimentary tract, digestive tract, digestive tube, gastrointestinal tract, GI 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
|3.||canal - long and narrow strip of water made for boats or for irrigation|
cut - a canal made by erosion or excavation
industrial watercourse - a canal that is operated by one or more industries
lock chamber, lock - enclosure consisting of a section of canal that can be closed to control the water level; used to raise or lower vessels that pass through it
lockage - a system of locks in a canal or waterway
|Verb||1.||canal - provide (a city) with a canal|
noun waterway, channel, passage, conduit, duct, watercourse A blockage of the canal could severely affect international shipping.
CanalsBerezina Canal, Bridgewater Canal, Caledonian Canal, Champlain Canal, Corinth Canal, Dortmund-Ems Canal, Erie Canal, Göta Canal, Grand Canal, Grand Union Canal, Houston Ship Canal, Kiel Canal, Manchester Ship Canal, Canal du Midi, Mittelland Canal, Moscow Canal, New York State Barge Canal, Canal do Norte, Panama Canal, Rhine-Herne Canal, Canal de São Gonçalo, Suez Canal, Twente Canal, Welland Canal
con kênhkênh đào
canal[kəˈnæl] n → canale m
1. a (usually narrow) man-made waterway. barges on the canal; the Panama Canal. kanaal قَناة канал canal průplav, kanál der Kanal kanal διώρυγαcanal kanal کانال؛ آبراهه kanava canalתעלה नहर kanal, prokop csatorna terusan skurður; skipaskurður canale 運河 운하 kanalas kanāls terusan kanaal, grachtkanalkanał يوه لويه واله په تېره چه بېړۍ پكښي چليږى: داوبو لګولو واله: (پ) يورګ چه دحيواناتو او يا نبا تاتو په جسم كې مايعات تېروى canal canal канал kanál prekop kanal kanal คลอง kanal 運河 канал نہر kênh đào 运河
2. a passage in the body carrying fluids, food etc. kanaal قَناةٌ ант. проход canal trubice die Röhre kanal σωλήναςtubo kanal هر یک از مجاری لوله مانند بدن kanava canal צנור, צינור पौधों या जानवरों की वह भीतरी नली जिससे खाद्य, पानी और वायु इत्यादि अंदर जाते हैं kanal vezeték saluran meltingarvegur canale, condotto 管 도관 kanalas, traktas vads saluran makanan kanaalkanalprzewód رګ canal canal, tub канал rúra kanal trakt kanal ท่อหรือทางเดินของเหลวในร่างกาย yemek borusu/kanalı (人體的)輸送管 канал غذائی نالی ، راستہ ống （人體的管）气管，食道