An elementary school.

(mythology, mysticism) A supernatural being associated with the elements.

Relating to the basic, essential or fundamental part of something.

Relating to an elementary school.

(physics) Relating to a subatomic particle.

(archaic) Sublunary; not celestial; belonging to the sublunary sphere, to which the four classical elements (earth, air, fire and water) were confined; composed of or pertaining to these four elements.