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ablator
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.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] Translationsablator
ablator[′ab‚lād·ər] (materials) ablative agent MedicalSeeablation |