A lot vs. Alot: 9 Grammatical Pitfalls
"relating to a base," 1828, from base (n.) + -al (1).
basal ba·sal (bā'səl, -zəl)adj.
Of, relating to, located at, or forming a base, usually of an organ or a tooth.
Of, relating to, of situated at the lowest level, as of an organ.