%photic%

. (Phytogeog.) A depth of water so great that only those organisms can exist that do not assimilate. [ Webster 1913 Suppl. ]

a. [ Gr. &unr_; fit for forming. ] (Physiol.) Connected with, or becoming an integral part of, a living unit or of the morphological framework; as, morphotic, or tissue, proteids. Foster. [ 1913 Webster ]

a. [ Gr. fw^s, fwto`s, light. ] Of or pertaining to light; specifically, relating to the production of light by the lower animals. [ Webster 1913 Suppl. ]

. (Phytogeography) The uppermost zone of the sea, which receives the most light. [ Webster 1913 Suppl. ]