[ˈbeɪsəɫ]
noun
Base, bottom, minimumAny basal structure or partadjective
Basic, elementary; relating to, or forming, the base, or point of origin.Associated with the base of an organism or structure.Of a minimal level that is necessary for maintaining the health or life of an organism.In a phylogenetic tree, being a group, or member of a group, which diverged earlier. The earliest clade to branch in a larger clade.