| This autostub has not yet had its initial copyediting proof and may contain significant formatting and even factual errors. You can improve Exodictionary by cleaning up the page markup and verifying that the definition is correct and then removing this tag.
| This autostub has not yet had its initial categorization proof and may be categorized incorrectly. You can improve Exodictionary by removing inappropriate categories and then removing this tag.
A popular term for speed limitations within an atmosphere imposed by aerodynamic
heating. Also called the heat barrier. [[/a>|/a>
This article is based on NASA's Dictionary of Technical Terms for Aerospace Use