from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The study of the effect of light on chemicals.
from the GNU version of the Collaborative International Dictionary of English
- n. The science which treats of rays of light, especially of the actinic or chemical rays.
from The Century Dictionary and Cyclopedia
- n. That branch of science which investigates the chemical action of light.
- n. The study of the Actinozoa: as, the actinology of the South Atlantic.
Sorry, no etymologies found.
n. - instrument for calculating time of photographic exposures. actinology