Word Study
anacamptic
CIDE DICTIONARY
anacamptic, a. [Gr. to bend back; back + to bend.].
Reflecting of reflected; as, an anacamptic sound (and echo). [1913 Webster]
" The word was formerly applied to that part of optics which treats of reflection; the same as what is now called catoptric . See Catoptrics ." [1913 Webster]
For further exploring for "anacamptic" in Webster Dictionary Online