noun
Usage: usually capitalized D
: navigation (as of an airplane) in which the change of frequency of reflected radar waves due to the Doppler effect is utilized by automatic devices to give information on velocity and position
noun
Usage: usually capitalized D
: navigation (as of an airplane) in which the change of frequency of reflected radar waves due to the Doppler effect is utilized by automatic devices to give information on velocity and position
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012