What is the meaning of Elementary?

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

Very simple.

Relating to an elementary school.

Fundamental: serving as a building block for more complicated structures or processes.

  1. Relating to a subatomic particle.
  2. Involving only a single reaction step and transition state.
  3. Which performs a row or column operation on another matrix when the two are multiplied; see Elementary matrix on Wikipedia.Wikipedia (Such matrices are called "elementary" because they generate the general linear group).
  4. Arising from Vieta's formulas; see Elementary symmetric polynomial on Wikipedia.Wikipedia

Relating to a subatomic particle.

Involving only a single reaction step and transition state.

Which performs a row or column operation on another matrix when the two are multiplied; see Elementary matrix on Wikipedia.Wikipedia (Such matrices are called "elementary" because they generate the general linear group).

Arising from Vieta's formulas; see Elementary symmetric polynomial on Wikipedia.Wikipedia

Straightforward, employing only basic techniques; not requiring substantial knowledge (of some particular domain, object, etc.).

  1. Making no use of complex analysis.

Making no use of complex analysis.

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.

An elementary school.

A supernatural being associated with the elements.

Source: wiktionary.org