Webster’s Revised Unabridged Dictionary · 1913
Definable
De·fin′a·ble (dē·fīn′ȧ·b'l), a. [From Define.] Capable of being defined, limited, or explained; determinable; describable by definition; ascertainable; as, definable limits; definable distinctions or regulations; definable words. — De·fin′a·bly, adv.