(a.) Situated beyond or below the red rays; as, the ultrated rays of the spectrum, which are less refrangible than the red.
ULTRARED
Meaning of ULTRARED in English
Webster's English dictionary. Английский словарь Webster. 2012
(a.) Situated beyond or below the red rays; as, the ultrated rays of the spectrum, which are less refrangible than the red.
Webster's English dictionary. Английский словарь Webster. 2012