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slenderness ratio

noun, Rocketry.
1.
aspect ratio (def 4a).

aspect ratio

noun
1.
Aeronautics. the ratio of the span of an airfoil to its mean chord.
2.
Television. the ratio of the width of an image to its height, usually the ratio 4 to 3.
3.
Naval Architecture. the ratio of the height of a rudder to its fore-and-aft length.
4.
Rocketry.
  1. Also called fineness ratio, slenderness ratio. the ratio of the mean diameter of the body of a rocket or missile to its length.
  2. the ratio of the length of the combustion chamber of a rocket motor to its diameter.
Origin
1905-1910
1905-10
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for slenderness-ratio

aspect ratio

noun
1.
the ratio of width to height of the picture on a television or cinema screen
2.
(aeronautics) the ratio of the span of a wing to its mean chord
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
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