International Standard Atmosphere


noun

a theoretical vertical distribution of the physical properties of the atmosphere up to an altitude of 50 km established by international agreement. It permits the standardization of aircraft instruments and performance of all types of flying vehicles

QUIZZES

THE OCTOBER WORD OF THE DAY QUIZ IS HERE TO HAUNT YOU

Search your capacious memory for the meaning of October’s words!
Question 1 of 9
Which Word of the Day from this month means, “an irrational dislike; loathing”?
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012