Definition of heat barrier in English:

heat barrier

Line breaks: heat bar|rier

noun

The limitation of the speed of an aircraft or other flying object by heat resulting from air friction.
More example sentences
  • The result is a virtually invisible sound and heat barrier.
  • However, he further maintains that we have also reached a moment when humans, who have already surpassed the sound and heat barriers, are left with nothing to race against but speed of light - something which can never be surpassed.

Definition of heat barrier in:

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Pronunciation: kiːk
verb
peep surreptitiously