noun
: the angle formed between a vertical line and the line of sight to an aiming point at the instant of release of an aerial bomb — called also dropping angle, sighting angle
noun
: the angle formed between a vertical line and the line of sight to an aiming point at the instant of release of an aerial bomb — called also dropping angle, sighting angle
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012