Elementary /(?)/

El·e·men·ta·ry

Elementary

a.
  1. Having only one principle or constituent part; consisting of a single element; simple; uncompounded; as, an elementary substance.
  2. Pertaining to, or treating of, the elements, rudiments, or first principles of anything; initial; rudimental; introductory; as, an elementary treatise.
  3. Pertaining to one of the four elements, air, water, earth, fire.