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1. (used with a sing. verb) The study of the thermodynamics of gases, especially at high relative velocities.
2. (used with a pl. verb) The thermodynamics of such gases.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Aeronautics) (functioning as singular) the study of the exchange of heat between solids and gases, esp of the heating effect on aircraft flying through the air at very high speeds
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
aer•o•ther•mo•dy•nam•ics(ˌɛər oʊˌθɜr moʊ daɪˈnæm ɪks)
n. (used with a sing. v.)
the science that deals with significant heat exchanges in gases or significant thermal effects between gases and solid surfaces, as in supersonic flight.
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