ablation

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ab·la·tion

 (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)
n
1. (Surgery) the surgical removal of an organ, structure, or part
2. (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 atmosphere
3. (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
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.ablation - surgical removal of a body part or tissueablation - surgical removal of a body part or tissue
adenoidectomy - surgical removal of the adenoids; commonly performed along with tonsillectomy
adrenalectomy, suprarenalectomy - surgical removal of one or both adrenal glands
appendectomy, appendicectomy - surgical removal of the vermiform appendix
cholecystectomy - surgical removal of the gall bladder (usually for relief of gallstone pain)
clitoridectomy, female circumcision - excision of the clitoris
surgical 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 atherosclerosis
enervation - surgical removal of a nerve
hypophysectomy - surgical removal of the pituitary gland
hysterectomy - surgical removal of the uterus
laminectomy - surgical removal of the bony arches on one or more vertebrae
laryngectomy - 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 cancer
mastectomy - surgical removal of a breast to remove a malignant tumor
mastoidectomy - surgical removal of some or all of the mastoid process
meniscectomy - surgical removal of the meniscus of the knee
nephrectomy - surgical removal of a kidney
neurectomy - surgical removal of all or part of a nerve
oophorectomy, ovariectomy - surgical removal of one of both ovaries
oophorosalpingectomy - surgical removal of one or both ovaries and the corresponding Fallopian tubes
ophthalmectomy - surgical removal of an eye
orchidectomy, orchiectomy - surgical removal of one or both testicles
pancreatectomy - surgical removal of part or all of the pancreas
pneumonectomy - surgical removal of a lung (usually to treat lung cancer)
prostatectomy - surgical removal of part or all of the prostate gland
salpingectomy - surgical removal of one or both Fallopian tubes
septectomy - 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 spleen
stapedectomy - surgical removal of the stapes of the middle ear
sympathectomy - surgical interruption of a nerve pathway in the sympathetic nervous system
thrombectomy - surgical removal of a blood clot (thrombus) from a blood vessel
thyroidectomy - surgical removal of the thyroid gland
tonsillectomy - surgical removal of the palatine tonsils; commonly performed along with adenoidectomy
vasectomy - surgical procedure that removes all or part of the vas deferens (usually as a means of sterilization); is sometimes reversible
vulvectomy - 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 glaciers
eating away, eroding, erosion, wearing, wearing away - (geology) the mechanical process of wearing or grinding something down (as by particles washing over it)
Translations
ablacija
ablasjon

ab·la·tion

n. ablación.

ablation

n ablación f radiofrequency — ablación por or con radiofrecuencia; radioiodine — ablación con yodo radiactivo
References in periodicals archive ?
The types of atrial fibrillation ablation procedures within the scope of the study include catheter ablation and surgical ablation.
Catheter ablation mouth of the pulmonary veins- Position 2.
Catheter ablation generally has very high cure rate for cardiac arrhythmias, according to Dr Alsheikh Ali .
The treatment, called catheter ablation, involves burning selected spots of tissue inside the heart with the tip of a catheter.
The company claims the device is the first therapeutic catheter approved in the United States that enables direct and real-time measurement of contact force during catheter ablation procedures for patients suffering from drug-resistant paroxysmal atrial fibrillation (AF or AFib), sustained monomorphic ischemic ventricular tachycardia and Type I atrial flutter.
GENEVA -- Endosense, a pioneer and leader in contact-force sensing technology focused on improving the efficacy and safety of catheter ablation for the treatment of cardiac arrhythmias, announced today that it has secured an additional USD 4.
Among specific topics are multiple mechanisms causing ventricular tachycardia, monophasic action potential recordings in atrial fibrillation and the role of repolarization alternans, mapping and catheter ablation of ventricular arrhythmias in ischemic and scar-related substrates, the role of cardiac computed tomography imaging to guide catheter ablation of arrhythmias in complex cardiac morphologies, and epicardial mapping of longstanding persistent atrial fibrillation.
The HeartLight EAS is the first catheter ablation system to incorporate an endoscope for direct visualization of a beating heart, in real time and without radiation.
As a result, the procedure, called catheter ablation, has remained a second-line treatment and continues to undergo testing, he says, even though about half of patients fail to control their atrial fibrillation with medication.
CABANA (Catheter Ablation Versus Antiarrhythmic Drug Therapy for Atrial Fibrillation) is randomizing roughly 3,000 patients with all types of symptomatic atrial fibrillation--paroxysmal, persistent, and long-standing persistent--to left atrial catheter ablation, antiarrhythmic drug therapy, or rate control medication.