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单词 ablation
释义

ablation


ab·la·tion

A0016800 (ă-blā′shən)n.1. Surgical excision or amputation of a body part or tissue.2. The erosive processes by which a glacier is reduced.3. Aerospace a. The dissipation of heat generated by atmospheric friction, especially in the atmospheric reentry of a spacecraft or missile, by means of a melting heat shield.b. The reduction or removal of heat-protective surface material by aerodynamic friction, as from a heat shield.
[Late Latin ablātiō, ablātiōn-, from Latin ablātus, past participle of auferre, to carry away : ab-, away; see ab-1 + lātus, carried; see telə- in Indo-European roots.]
ab·la′tor n.

ablation

(æbˈleɪʃən) n1. (Surgery) the surgical removal of an organ, structure, or part2. (Aeronautics) the melting or wearing away of an expendable part, such as the heat shield of a space re-entry vehicle on passing through the earth's atmosphere3. (Geological Science) the wearing away of a rock or glacier[C15: from Late Latin ablatiōn-, from Latin auferre to carry away, remove]

ab•la•tion

(æˈbleɪ ʃən)

n. 1. the act or process of ablating. 2. the removal of organs, abnormal growths, or harmful substances from the body by mechanical means, as by surgery. 3. the erosion of the protective outer surface (ablator) of a spacecraft or missile due to heat during reentry through the atmosphere. [1570–80; < Late Latin]

ab·la·tion

(ă-blā′shən)1. The wearing away or destruction of the outer or forward surface of an object, such as a meteorite or a spacecraft, as it moves very rapidly through the atmosphere. The friction of the air striking the object heats and often melts or burns its outer layers.2. The process by which snow and ice are removed from a glacier or other mass of ice. Ablation typically occurs through melting, sublimation, or wind erosion.

ablation

Medicine. removal of part of the body by surgery.See also: Surgery
Thesaurus
Noun1.ablation - surgical removal of a body part or tissueablation - surgical removal of a body part or tissuecutting out, extirpation, excisionadenoidectomy - surgical removal of the adenoids; commonly performed along with tonsillectomyadrenalectomy, suprarenalectomy - surgical removal of one or both adrenal glandsappendectomy, appendicectomy - surgical removal of the vermiform appendixcholecystectomy - surgical removal of the gall bladder (usually for relief of gallstone pain)clitoridectomy, female circumcision - excision of the clitorissurgical operation, surgical procedure, surgical process, surgery, operation - a medical procedure involving an incision with instruments; performed to repair damage or arrest disease in a living body; "they will schedule the operation as soon as an operating room is available"; "he died while undergoing surgery"embolectomy - surgical removal of an embolus (usually from an artery)endarterectomy - surgical removal of the inner lining of an artery that is clogged with atherosclerosisenervation - surgical removal of a nervehypophysectomy - surgical removal of the pituitary glandhysterectomy - surgical removal of the uteruslaminectomy - surgical removal of the bony arches on one or more vertebraelaryngectomy - surgical removal of part or all of the larynx (usually to treat cancer of the larynx)lithotomy - surgical removal of a stone (calculus)lobectomy - surgical removal of a lobe from any organ of the body (as the lung or brain)lumpectomy - surgical removal of a tumor without removing much of the surrounding tissue or lymph nodes; performed in some cases of breast cancermastectomy - surgical removal of a breast to remove a malignant tumormastoidectomy - surgical removal of some or all of the mastoid processmeniscectomy - surgical removal of the meniscus of the kneenephrectomy - surgical removal of a kidneyneurectomy - surgical removal of all or part of a nerveoophorectomy, ovariectomy - surgical removal of one of both ovariesoophorosalpingectomy - surgical removal of one or both ovaries and the corresponding Fallopian tubesophthalmectomy - surgical removal of an eyeorchidectomy, orchiectomy - surgical removal of one or both testiclespancreatectomy - surgical removal of part or all of the pancreaspneumonectomy - surgical removal of a lung (usually to treat lung cancer)prostatectomy - surgical removal of part or all of the prostate glandsalpingectomy - surgical removal of one or both Fallopian tubesseptectomy - surgical removal of all or part of a septum (especially the nasal septum or atrial septum)sigmoidectomy - surgical removal of part or all of the sigmoid colon (usually to remove a malignant tumor)splenectomy - surgical removal of the spleenstapedectomy - surgical removal of the stapes of the middle earsympathectomy - surgical interruption of a nerve pathway in the sympathetic nervous systemthrombectomy - surgical removal of a blood clot (thrombus) from a blood vesselthyroidectomy - surgical removal of the thyroid glandtonsillectomy - surgical removal of the palatine tonsils; commonly performed along with adenoidectomyvasectomy - surgical procedure that removes all or part of the vas deferens (usually as a means of sterilization); is sometimes reversiblevulvectomy - surgical removal of part or all of the vulva
2.ablation - the erosive process that reduces the size of glaciersablation - the erosive process that reduces the size of glacierseating away, eroding, erosion, wearing, wearing away - (geology) the mechanical process of wearing or grinding something down (as by particles washing over it)
Translations
абляцияампутация

ablation


ablation

1. Medicine the surgical removal of an organ, structure, or part 2. Astronautics the melting or wearing away of an expendable part, such as the heat shield of a space re-entry vehicle on passing through the earth's atmosphere 3. Geology the wearing away of a rock or glacier

ablation

(ab-lay -shŏn) The loss of material from the surface of a moving body as a result of vaporization, friction, etc. For example, atmospheric atoms and molecules erode the surface of a meteoroid and damage the protective heat shield of a returning space shuttle.

Ablation

 

in glaciology, the wasting of the mass of a glacier or snow cover as a result of thawing, evaporation, or mechanical removal—for example, wind ablation or the falling of icebergs. It is caused chiefly by climatic factors.

Three types of ablation are distinguished according to place of appearance: subglacial (or bottom), internal, and surface. The internal heat of the earth, springs (particularly warm ones) surfacing in the glacier bed, and heat caused by the friction of the glacier in its bed are some of the causes of subglacial ablation. Internal ablation is caused by friction between the glacier components and by the circulation of water and air. The glacier surface receives warmth predominantly from solar radiation and from the air. The thermal balance of the glacier surface is the basis of all surface ablation processes. The term “ablation” is sometimes used as well as a synonym for “surface washoff.”

ablation

[ə′blā·shən] (aerospace engineering) The intentional removal of material from a nose cone or spacecraft during high-speed movement through a planetary atmosphere to provide thermal protection to the underlying structure. (geology) The wearing away of rocks, as by erosion or weathering. (hydrology) The reduction in volume of a glacier due to melting and evaporation. (medicine) The removal of tissue or a part of the body by surgery, such as by excision or amputation.

See ablation

ablation


ablation

 [ab-la´shun] 1. separation or detachment; extirpation; eradication.2. removal, especially by cutting with a laser or electrocautery.catheter ablation radiofrequency ablation.endometrial ablation removal of the endometrium; methods used include radiofrequency, electrical energy, lasers, and hot and cold liquids.radiofrequency ablation (radiofrequency catheter ablation) destruction of an pathway" >accessory conduction pathway or other troublesome area of dysrhythmia by means of unmodulated high frequency alternating current delivered by a bipolar or unipolar catheter. The current causes heat with tissue destruction and formation of scar tissue to block the pathway or dysrhythmic area. Transvenous radiofrequency ablation has been successful in treatment of tachycardia" >supraventricular tachycardia and is an attractive option to surgery. Called also catheter ablation.

ab·la·tion

(ab-lā'shŭn), This word denotes complete removal or extinction, not merely mitigation or reduction.Removal of a body part or the destruction of its function, as by a surgical procedure or morbid process, or the presence or application of a noxious substance. [L. see ablate]

ablation

(ă-blā′shən)n.1. Surgical excision or amputation of a body part or tissue.2. The erosive processes by which a glacier is reduced.3. Aerospace a. The dissipation of heat generated by atmospheric friction, especially in the atmospheric reentry of a spacecraft or missile, by means of a melting heat shield.b. The reduction or removal of heat-protective surface material by aerodynamic friction, as from a heat shield.
ab·la′tor n.

Ablation

Cardiology Ablation therapy The destruction, isolation or removal of an endocardial region linked to a particular arrhythmia.
Indications Atrial flutter/fibrillation, AV nodal reentry, AV reentry, ventricular reentry
Endocrinology The pharmacologic or surgical elimination of hormone-producing tissue
Gynaecology The stripping out of a tissue—e.g., epithelium of the uterine cervix or endometrium
Surgery Removal, excision

ablation

Cardiology Ablation therapy The destruction, isolation or removal of an endometrial region linked to a particular arrhythmia Indications Atrial flutter/fibrillation, AV nodal reentry, AV reentry, ventricular reentry. See Balloon ablation, Radiofrequency catheter ablation Endocrinology The pharmacologic or surgical elimination of hormone-producing tissue. See Androgen ablation, Endometrial ablation Gynecology The stripping out of a tissue. See Cryoablation, Endometrial ablation Medtalk Removal, excision Surgery Removal, excision.

ab·la·tion

(ab-lā'shŭn) Removal of a body part or the destruction of its function, as by a surgical procedure, morbid process, or noxious substance.

ablation

Deliberate removal or separation, especially by surgery.

ablation

the removal or destruction of any part of an organism.

Ablation

The removal of abnormal tissue growths by surgery.Mentioned in: Electrophysiology Study of the Heart, Snoring

ablation 

A procedure in which a tissue or body part is removed or destroyed by surgery, radiation or photocoagulation. Example: LASIK.

ab·la·tion

(ab-lā'shŭn) Removal of a body part or the destruction of its function, procedure or morbid process, or the presence or application of a noxious substance.

Patient discussion about ablation

Q. SVT and AF, Hearts that go fast to slow or any others probs with the beats of any kind and Ablation of hearts I have had Ablation done once and I am still having passing out spells and still on 50mg toprol 2 times a day till two days ago, now I am on 150 to 200 aday again. Its not the first time I have had to up meds. I had ablation down 4/22/05. I can breath better now but but it didnt take it away as you can tell. Now Dr Leonardie would like to do it again . This is the big ????! Will it or can it work 100% this time, or will it hit and miss some again???? MTTA. Well I can understand the frustration of having to go through this procedure yet another time. There are no guarantees in medicine. You should follow your doctor's advice, as another proceudre might be more helpful than the last one. However you should keep in mind that nothing is for sure.

More discussions about ablation

ablation


Related to ablation: Radiofrequency ablation, Catheter ablation, Endometrial ablation, Cardiac ablation
  • noun

Synonyms for ablation

noun surgical removal of a body part or tissue

Synonyms

  • cutting out
  • extirpation
  • excision

Related Words

  • adenoidectomy
  • adrenalectomy
  • suprarenalectomy
  • appendectomy
  • appendicectomy
  • cholecystectomy
  • clitoridectomy
  • female circumcision
  • surgical operation
  • surgical procedure
  • surgical process
  • surgery
  • operation
  • embolectomy
  • endarterectomy
  • enervation
  • hypophysectomy
  • hysterectomy
  • laminectomy
  • laryngectomy
  • lithotomy
  • lobectomy
  • lumpectomy
  • mastectomy
  • mastoidectomy
  • meniscectomy
  • nephrectomy
  • neurectomy
  • oophorectomy
  • ovariectomy
  • oophorosalpingectomy
  • ophthalmectomy
  • orchidectomy
  • orchiectomy
  • pancreatectomy
  • pneumonectomy
  • prostatectomy
  • salpingectomy
  • septectomy
  • sigmoidectomy
  • splenectomy
  • stapedectomy
  • sympathectomy
  • thrombectomy
  • thyroidectomy
  • tonsillectomy
  • vasectomy
  • vulvectomy

noun the erosive process that reduces the size of glaciers

Related Words

  • eating away
  • eroding
  • erosion
  • wearing
  • wearing away
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更新时间:2025/2/24 7:37:08