Tithonic

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Tithonic \Ti*thon"ic\, a. [L. Tithonius belonging to Tithonus,
     the consort of Aurora, Gr. ?.]
     Of, pertaining to, or denoting, those rays of light which
     produce chemical effects; actinic. [R.]
     [1913 Webster]