actinometer noun.
[aktɪ'nɒmɪtǝ] M19.[from ACTINO- + -METER.]An instrument for measuring the heating or actinic power of radiant energy.
■ ,actino'metric adjective of or pertaining to actinometers or their use
M19. ■ ,actino'metrical adjective =
ACTINOMETRIC L19. ■ actinometry noun M19. [TahlilGaran] English Dictionary ▲