ablator


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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.

ablator

(æbˈleɪtə)
n
(Astronautics) the heat shield of a space vehicle, which melts or wears away during re-entry into the earth's atmosphere
[C20: from ablation]

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]
Translations
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References in periodicals archive ?
Like Avcoat, SLA (for "super-lightweight ablator") is based on a honeycomb structure filled with gobs of ablative resin.
It is made from phenolic-impregnated carbon ablator or PICA, a material which is extremely light, but can bear temperatures going up to a whopping 4000 degrees Fahrenheit (2200 degrees Celsius), according to an (https://www.npr.org/sections/thetwo-way/2018/04/27/606349244/nasa-mars-mission-faces-setback-after-heat-shield-cracks-under-pressure) NPR report.
Medical device company Bovie Medical (NYSE MKT:BVX) reported on Thursday the launch of a global sales channel partnership agreement with CONMED (CNMD) for its PlazXact Ablator in orthopedic surgery procedures.
[19] simulated the pyrolysis and erosion of the ablator by implementing a complex finite element model, which results in very good agreement with experimental evidences.
On 23 February 2009, SpaceX announced that its chosen phenolic-impregnated carbon ablator heat shield material, PICA-X, had passed heat stress tests in preparation for Dragon's maiden launch.
The ablation devices segments are further sub segmented based on product types as follows - electrical (electrosurgical ablator devices and electrical brachytherapy devices), radiation (brachytherapy, stereotactic radio surgery devices, stereotactic body radiotherapy devices, image guided radiotherapy (IGRT), image modulated radiotherapy (IMRT), nano radiation therapy, proton beam therapy), radiofrequency (temperature controlled devices, fluid cooled, catheter manipulation systems), light (cold lasers, excimer lasers, photonic ablation devices, ultraviolet lasers and others), cryotherapy (cardiac cryoablation devices and cryospray ablation systems), microwave (coretherm thermotherapy devices and prolieve thermotherapy devices).
phenolic impregnated carbon ablator) that can protect the spacecraft as it reenters space.
Current non-resectoscopic technologies include bipolar radiofrequency (Novasure), hot liquid filled balloon (Therma Choice), cryotherapy (Her Option), circulating hot water (Hydro Therm Ablator), and microwave (Microwave Endometrial Ablation).
A protective solid layer is developed due to the char--reinforcement reactions during ablation that helps to reduce thermal/mechanical erosion of the ablator (2), (16).
via a laser, acoustic ablator or other ablation technology) that would achieve the same goal as surgical removal of the hippocampus.