basal

ba·sal

adj \ˈbā-səl, -zəl\

Definition of BASAL

1

: relating to, situated at, or forming the base

2

: of, relating to, or essential for maintaining the fundamental vital activities of an organism (as respiration, heartbeat, or excretion) <a basal diet>—see basal metabolism

3

: serving as or serving to induce an initial comatose or unconscious state that forms a basis for further anesthetization <basal narcosis> <a basal anesthetic>

—ba·sal·ly \-ē\ adverb