(adj) easy and not involved or complicated, Syn. simple, uncomplicated, unproblematic, Example:an elementary problem in statistics; elementary, my dear Watson; a simple game; found an uncomplicated solution to the problem
a. [ L. elementarius: cf. F. élémentaire. ] 1. Having only one principle or constituent part; consisting of a single element; simple; uncompounded; as, an elementary substance. [ 1913 Webster ]
2. Pertaining to, or treating of, the elements, rudiments, or first principles of anything; initial; rudimental; introductory; as, an elementary treatise. [ 1913 Webster ]
3. Pertaining to one of the four elements, air, water, earth, fire. “Some luminous and fiery impressions in the elementary region.” J. Spencer. [ 1913 Webster ]
[しょう, shou] (n, n-pref) (1) smallness; small item; (2) (See 小の月) short month (i.e. having fewer than 31 days); (3) (abbr) (See 小学校) elementary school; (4) younger or inferior (of two items or people with the same name); (5) (arch) unit of field area (approx. 400 sq m)#659
[よみほん, yomihon] (n) (1) (See 入門書) reading-book; reader; guidebook; manual; (2) (original meaning) textbook (esp. a pre-war elementary school Japanese language textbook); (P)#6978