ˈdäplə(r)- noun
Usage: usually capitalized D
Etymology: after Christian J. Doppler died 1853 Austrian physicist
: a lack of sharpness in the spectrum lines of gases due to the Doppler effect of the random thermal motion of the molecules
ˈdäplə(r)- noun
Usage: usually capitalized D
Etymology: after Christian J. Doppler died 1853 Austrian physicist
: a lack of sharpness in the spectrum lines of gases due to the Doppler effect of the random thermal motion of the molecules
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012