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A barrier that prevents the heating of a space or an object by absorbing, reflecting, or dissipating external heat, especially a protective structure on a spacecraft or missile that dissipates heat on atmospheric reentry by melting and vaporizing.
(Astronautics) a coating or barrier for shielding from excessive heat, such as that experienced by a spacecraft on re-entry into the earth's atmosphere
an exterior coating or structure that protects a spacecraft from excessive heating during reentry.
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|Noun||1.||heat shield - a protective covering that protects a spacecraft from overheating on reentry|
nose cone, ogive - front consisting of the conical head of a missile or rocket that protects the payload from heat during its passage through the atmosphere
protective cover, protective covering, protection - a covering that is intend to protect from damage or injury; "they had no protection from the fallout"; "wax provided protection for the floors"