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