Ĕl'e-mĕn'ta-ry, a.

(44), a. [Lat. elementarius, from elementum; Fr. élémentaire, It. elementario.]

1. Having only one principle or constituent part; consisting of a single element; simple; uncombined; uncompounded; primarily constituent; as, an elementary substance; elementary particles.
2. Pertaining to the elements, rudiments, or first principles of any thing: initial; rudimental; as, an elementary treatise or disquisition.
3. Treating of elements or first principles of a science or art; hence, introductory in a course of study or remarks; as, an elementary writer.