ep·i·crit·ic 
(ĕp′ĭ-krĭtĭk)
(ĕp′ĭ-krĭtĭk)adj.
Of or relating to sensory nerve fibers that enable the perception of slight differences in the intensity of stimuli, especially touch or temperature.
[Greek epikritikos, decisive, from epikritēs, decider, from epikrīnein, to decide : epi-, epi- + krīnein, to judge; see krei- in the Appendix of Indo-European roots.]