ablation

(redirected from ablate)
Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
Related to ablate: Ablative cooling

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.
References in periodicals archive ?
This catheter is designed to allow physicians to more efficiently and easily ablate than with a single tip ablation procedure," said Kevin Wheelan, M.
The purpose of the proposed study that will enroll up to 120 men is to demonstrate that NanoTherm can ablate cancer lesions for patients who have Gleason Score 7 prostate cancer and are under active surveillance.
The pulse energy acts as a scoop, allowing the physician to ablate more or less tissue with each pulse, while the average power determines the rate of pulse arrival and controls the overall rate of tissue removal.
MedicalCV's SOLAR automated surgical ablation system, which is the subject of the pending FDA clearance, utilizes laser energy to ablate soft tissue in various surgical settings.
The Company's family of fluidjet products covered in its expanding worldwide intellectual property portfolio empowers surgeons to simultaneously cut, ablate, and remove hard and soft tissue quickly, safely, and effectively-- without the collateral thermal or mechanical trauma of other surgical modalities.
a cardiovascular surgery device manufacturer, focuses on the development and introduction of products designed to improve patient outcomes through the early treatment of cardiovascular disorders and disease, specifically products used by cardiac surgeons to ablate cardiac tissue as a potential means to treat atrial fibrillation.