Basal a. : Relating to, or forming, the base.

Example:
How do you track your Basal body temperature?

Taxonomy
Basal, free encyclopedia, meanings, clade, basal ganglia, basal lamina, search, free dictionary, outgroup, insulin, the brain, epithelial cells, organism, adheres, village, textbooks, grades, teachers.

Defination from the web:
basal lamina is the surface on which epithelial cells are attached. ... Basal, a village in Hungary. Basal can refer to a comprehensive package that includes students' textbooks for a sequence of grades, plus associated teachers' manuals and ...