We found 9 dictionaries that define the word actinic ray:

General (8 matching dictionaries)

1. actinic ray: American Heritage Dictionary of the English Language
2. actinic ray: Vocabulary.com
3. actinic ray: Infoplease Dictionary
4. actinic ray: Dictionary.com
5. actinic ray: Rhymezone
6. actinic ray: FreeDictionary.org
7. actinic ray: Mnemonic Dictionary
8. actinic ray: TheFreeDictionary.com

Medicine (1 matching dictionary)

9. online medical dictionary (No longer online)

(Note: See actinic_rays as well.)

Definitions from WordNet (actinic ray) ▸ noun:  electromagnetic radiation that can produce photochemical reactions Opposite: nonactinic, non-actinic, nonradiant ▸ Words similar to actinic ray ▸ Usage examples for actinic ray ▸ Idioms related to actinic ray ▸ Wikipedia articles (New!) ▸ Words that often appear near actinic ray ▸ Rhymes of actinic ray ▸ Invented words related to actinic ray