noun
1. : the ratio of span to mean chord of an airfoil
2. : the ratio of the width of a television image to its height
3. : the ratio of the longer to the shorter dimension of the cross section of an air duct opening in an air-conditioning system
noun
1. : the ratio of span to mean chord of an airfoil
2. : the ratio of the width of a television image to its height
3. : the ratio of the longer to the shorter dimension of the cross section of an air duct opening in an air-conditioning system
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012