Phrases starting with the letter: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Previous word: radiomaterial
Next word: radiomicrometer
Definition of: radiometer
(rā′dē·om′ə·tər) noun
An instrument for detecting and measuring radiant energy by converting it into mechanical energy, as by the rotation of blackened disks suspended in a vacuum and exposed to sunlight. [<RADIO- + METER1]
—ra′di·o·met′ric (-ō·met′rik) adjective
—ra′di·om′e·try noun
Comment about this word, ask questions, or add new information about this topic: