| 释义 |
leech
leechbloodsucking worm; extortioner; sponger
Not to be confused with:leach – to dissolve out substances; to percolateleech 1 L0083600 (lēch)n.1. Any of various chiefly aquatic carnivorous or bloodsucking annelid worms of the class (or subclass) Hirudinea, of which one species (Hirudo medicinalis) was formerly widely used by physicians for therapeutic bloodletting.2. One that preys on or clings to another; a parasite.3. Archaic A physician.v. leeched, leech·ing, leech·es v.tr.1. To bleed with leeches.2. To drain the essence or exhaust the resources of.v.intr. To attach oneself to another in the manner of a leech.
[Middle English leche, physician, leech, from Old English lǣce; see leg- in Indo-European roots.]
leech 2 L0083600 (lēch)n. Nautical 1. Either vertical edge of a square sail.2. The after edge of a fore-and-aft sail.
[Middle English leche, probably from Middle Low German līk, leech line; see leig- in Indo-European roots.]leech (liːtʃ) n1. (Animals) any annelid worm of the class Hirudinea, which have a sucker at each end of the body and feed on the blood or tissues of other animals. See also horseleech, medicinal leech2. a person who clings to or preys on another person3. (Medicine) a. an archaic word for physicianb. (in combination): leechcraft. 4. cling like a leech to cling or adhere persistently to somethingvb (Medicine) (tr) to use leeches to suck the blood of (a person), as a method of medical treatment[Old English lǣce, lœce; related to Middle Dutch lieke] ˈleechˌlike adj
leech (liːtʃ) or leachn (Nautical Terms) nautical the after edge of a fore-and-aft sail or either of the vertical edges of a squaresail[C15: of Germanic origin; compare Dutch lijk]leech1 (litʃ)
n. 1. any bloodsucking annelid worm of the class Hirudinea, as the European Hirudo medicinalis, once used widely for bloodletting. 2. a person who clings to another for personal gain, esp. without giving anything in return; parasite. 3. Archaic. an instrument used for drawing blood. v.t. 4. to apply leeches to, so as to bleed. 5. to cling to and feed upon or drain, as a leech does; exhaust; deplete. 6. Archaic. to cure; heal. v.i. 7. to hang on to a person in the manner of a leech. [before 900; Middle English leche, Old English lǣce; replacing (by association with leech2) Middle English liche, Old English lȳce, c. Middle Dutch lieke] leech2 (litʃ)
n. Archaic. a physician. [before 1150; Middle English leche, Old English lǣce; c. Old Saxon lāki, Old High German lāhhi, Gothic lēkeis; akin to Old Norse lǣknir] leech3 (litʃ)
n. 1. either of the lateral edges of a square sail. 2. the after edge of a fore-and-aft sail. [1350–1400; leche, Middle English lich(e)] leech (lēch) Any of various worms that live in water and suck blood from other animals, including humans. One species, the medicinal leech, has been used in bloodletting and in helping to heal wounds and surgical grafts. Leeches are annelids, related to earthworms.leech
Past participle: leeched
Gerund: leeching
| Present |
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| I leech | | you leech | | he/she/it leeches | | we leech | | you leech | | they leech |
| Preterite |
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| I leeched | | you leeched | | he/she/it leeched | | we leeched | | you leeched | | they leeched |
| Present Continuous |
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| I am leeching | | you are leeching | | he/she/it is leeching | | we are leeching | | you are leeching | | they are leeching |
| Present Perfect |
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| I have leeched | | you have leeched | | he/she/it has leeched | | we have leeched | | you have leeched | | they have leeched |
| Past Continuous |
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| I was leeching | | you were leeching | | he/she/it was leeching | | we were leeching | | you were leeching | | they were leeching |
| Past Perfect |
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| I had leeched | | you had leeched | | he/she/it had leeched | | we had leeched | | you had leeched | | they had leeched |
| Future |
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| I will leech | | you will leech | | he/she/it will leech | | we will leech | | you will leech | | they will leech |
| Future Perfect |
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| I will have leeched | | you will have leeched | | he/she/it will have leeched | | we will have leeched | | you will have leeched | | they will have leeched |
| Future Continuous |
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| I will be leeching | | you will be leeching | | he/she/it will be leeching | | we will be leeching | | you will be leeching | | they will be leeching |
| Present Perfect Continuous |
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| I have been leeching | | you have been leeching | | he/she/it has been leeching | | we have been leeching | | you have been leeching | | they have been leeching |
| Future Perfect Continuous |
|---|
| I will have been leeching | | you will have been leeching | | he/she/it will have been leeching | | we will have been leeching | | you will have been leeching | | they will have been leeching |
| Past Perfect Continuous |
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| I had been leeching | | you had been leeching | | he/she/it had been leeching | | we had been leeching | | you had been leeching | | they had been leeching |
| Conditional |
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| I would leech | | you would leech | | he/she/it would leech | | we would leech | | you would leech | | they would leech |
| Past Conditional |
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| I would have leeched | | you would have leeched | | he/she/it would have leeched | | we would have leeched | | you would have leeched | | they would have leeched |
Thesaurus| Noun | 1. |  leech - carnivorous or bloodsucking aquatic or terrestrial worms typically having a sucker at each endbloodsucker, hirudineanannelid, annelid worm, segmented worm - worms with cylindrical bodies segmented both internally and externallyclass Hirudinea, Hirudinea - hermaphroditic aquatic or terrestrial or parasitic annelidsHirudo medicinalis, medicinal leech - large European freshwater leech formerly used for bloodlettinghorseleech - any of several large freshwater leeches | | 2. | leech - a follower who hangs around a host (without benefit to the host) in hope of gain or advantageparasite, sponger, spongefollower - a person who accepts the leadership of another | | Verb | 1. |  leech - draw blood; "In the old days, doctors routinely bled patients as part of the treatment"phlebotomise, phlebotomize, bleedpractice of medicine, medicine - the learned profession that is mastered by graduate training in a medical school and that is devoted to preventing or alleviating or curing diseases and injuries; "he studied medicine at Harvard"care for, treat - provide treatment for; "The doctor treated my broken leg"; "The nurses cared for the bomb victims"; "The patient must be treated right away or she will die"; "Treat the infection with antibiotics" |
leechnoun parasite, hanger-on, sycophant, freeloader (slang), sponger (informal), ligger (slang), bloodsucker (informal) They're just a bunch of leeches cadging off others!leechnounOne who depends on another for support without reciprocating:bloodsucker, hanger-on, parasite, sponge.Slang: freeloader.verbTo take advantage of the generosity of others:Informal: sponge.Slang: freeload.Translationsleech (liːtʃ) noun a kind of blood-sucking worm. 水蛭 水蛭leech
leech1. noun A person who preys or overly depends upon another, or who clings to another in an parasitic manner. Her younger brother is a bit of a leech, always hanging around us and asking for money.2. verb To cling to or overly depend upon another person in a parasitic manner, like a leech. She's always leeching off the work other people do in the office.like a leechIn or having a parasitic, clinging manner or demeanor. Her younger brother is like a leech, always hanging around us and asking for money.See also: leech, likelike a leech persistently or clingingly present. This idiom refers to the way in which a leech attaches itself by suction to the person or animal from which it is drawing blood: the parasites are very difficult to remove once they are attached to the skin and feeding.See also: leech, likeleech
leech, predacious or parasitic annelid worm of the class Hirudinea, characterized by a cylindrical or slightly flattened body with suckers at either end for attaching to prey. The leech, like other annelids, is segmented, but its numerous surface folds obscure the internal segments. In many forms the mouth has three small jaws equipped with sharp teeth. The digestive tract has lateral pouches that hold enough of the leech's staple food, blood, to last for months. The reproductive system is complex; leeches are hermaphroditic and cross-fertilizing. Nearly all leeches are aquatic, abounding in freshwater ponds in temperate regions, but they also are found in the tropics, in polar oceans, and in deserts. Some are permanent parasites of humans, horses, cattle, fish, and mollusks, but most are merely predatory. The salivary secretions of the leech contain hirudin, an anticoagulant, and other substances that promote blood flow. The medicinal leech (Hirudo medicinalis), a European freshwater leech once used by physicians to bleed patients suffering from almost any ailment, are now used to remove pooled blood from under skin grafts and other reconstructive surgeries, to treat bruises (such as black eyes), and to treat some osteoarthritis. Certain small leeches of the E Mediterranean region may enter the bodies of humans and animals through drinking water and lodge as parasites in the mouth or the respiratory passages. The giant Amazon leech can grow as large as the forearm of an adult human being. Leeches are classified in the phylum AnnelidaAnnelida
[Lat., anellus=a ring], phylum of soft-bodied, bilaterally symmetrical (see symmetry, biological), segmented animals, known as the segmented, or annelid, worms.
..... Click the link for more information. , class Hirudinea.leech[lēch] (invertebrate zoology) The common name for members of the annelid class Hirudinea. leech11. any annelid worm of the class Hirudinea, which have a sucker at each end of the body and feed on the blood or tissues of other animals 2. an archaic word for physician
leech2, leach Nautical the after edge of a fore-and-aft sail or either of the vertical edges of a squaresail leech (networking)Someone who downloads files but providesnothing for others to download. The term is common onBitTorrent, which relies on having multiple sources forfiles to improve download speed.leechA person who takes without giving. A free loader. See bandwidth leech and BitTorrent leech.Leech (dreams)Leeches are parasites that drain your energy and your resources. They are literally “bloodsuckers” and what they represent from your life is up to you to determine. Think about all of the draining things around you or inside of you. Usually dreams are designed to make us more aware of ourselves. Thus, the leeches may represent your own habits, thoughts, and negative emotions rather than someone in your environment. In the old days (and maybe in some remote parts of the world this is still happening) leeches were used frequently for medical purposes. They were harvested and used in case of infection, when a poisonous or harmful substance needed to be removed from the body. Maybe the leeches in your dream are there to suck out all of the negativity that you acquire throughout your day or in a particular situation.leech
leech [lēch] any of the annelids of the class Hirudinea, especially Hirudo medicinalis; some species are bloodsuckers. Leeches were used extensively to treat various disorders and are still used occasionally to reduce postsurgical venous congestion, as in tissue flaps, grafts, or transplants.leech (lēch), 1. A bloodsucking aquatic annelid worm (genus Hirudo, class Hirudinea) sometimes used in medicine for local withdrawal of blood. 2. To treat medically by applying leeches. [A.S. laece, a physician; a leech, because of its therapeutic use] leech (lēch)n.1. Any of various chiefly aquatic carnivorous or bloodsucking annelid worms of the class (or subclass) Hirudinea, of which one species (Hirudo medicinalis) was formerly widely used by physicians for therapeutic bloodletting.2. Archaic A physician.v. leeched, leeching, leeches v.tr. To bleed with leeches.leech noun A segmented annelid of fresh water or soil in the tropics and subtropics; classic medicinal leech is Hirudo medicinalis, others include Poecilobdella, Dinobdella, Limnatis, Haemadipsa, Macrobdella Medical uses Remove excess blood from operative field; stimulate capillary ingrowth in reimplanted, traumatically amputated extremities and in plastic surgery; extract hirudin, a potent anticoagulant, and undelineated substances in leech saliva that inhibit tumor spread. See Hirudin, Limnatis nilotica verbTo treat with a leech, to let blood. leech (lēch) 1. Any bloodsucking aquatic annelid worm, including those of the class Hirudinea, sometimes used in medicine and plastic surgery for local withdrawal of blood. 2. To treat medically by applying leeches. leech 1. An annelid worm of the class Hirudinea, some of which are blood-suckers. Leeches were formerly much used to withdraw blood, to reduce HAEMATOMAS and to attempt to treat varicose veins. 2. A facetious term for a medical practitioner. leech an aquatic annelid of the order Hirudinea.leech (lēch) A bloodsucking aquatic annelid worm sometimes used in medicine for local withdrawal of blood. leech
Related to leech: Leech therapySynonyms for leechnoun parasiteSynonyms- parasite
- hanger-on
- sycophant
- freeloader
- sponger
- ligger
- bloodsucker
Synonyms for leechnoun one who depends on another for support without reciprocatingSynonyms- bloodsucker
- hanger-on
- parasite
- sponge
- freeloader
verb to take advantage of the generosity of othersSynonymsSynonyms for leechnoun carnivorous or bloodsucking aquatic or terrestrial worms typically having a sucker at each endSynonymsRelated Words- annelid
- annelid worm
- segmented worm
- class Hirudinea
- Hirudinea
- Hirudo medicinalis
- medicinal leech
- horseleech
noun a follower who hangs around a host (without benefit to the host) in hope of gain or advantageSynonymsRelated Wordsverb draw bloodSynonyms- phlebotomise
- phlebotomize
- bleed
Related Words- practice of medicine
- medicine
- care for
- treat
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