(childish) A nonexistent letter of the alphabet which some children think comes between k and p.

plural of elementary school

plural of elementary symmetric polynomial

(chemistry) A chemical element present in a sample in very small quantities.

(inorganic chemistry, physics) Any chemical element from the main group.

(geology) An element which is not a trace element in a given context, and which is present in significant quantity.

plural of elementary function

plural of transition element

plural of alloying element

An identification such as a data element name / A clear data element definition / One or more representation terms / Optional enumerated values