(noun) the part of a person that feels, thinks, perceives, wills, and especially reasons
(noun) that part of the central nervous system that includes all the higher nervous centers; enclosed within the skull; continuous with the spinal cord
Definitions for Primeval
(adjective) relating to or occurring near the beginning of a process, series, or time period
(adjective) having existed from the beginning; in an earliest or original stage or state