without a theoretical basis; not concerned with theory.
the removal of plaque from an artery by means of a tiny rotating cutting blade inserted through a catheter.
belonging or pertaining to the family Atherinidae, comprising the silversides. an atherine fish.
noun an inability to transmit radiant heat or infrared radiation Also called adiathermancy Historical Examples athermancy, ath-er′man-si, n. the property of stopping radiant heat. Chambers’s Twentieth Century Dictionary (part 1 of 4: A-D) Various
adjective capable of stopping radiant heat or infrared radiation Historical Examples It has been shown that rock-salt is extremely opaque or athermanous to the radiations from a piece of heated rock-salt. The New Gresham Encyclopedia Various