(chemistry) Any one of the simplest chemical substances that cannot be decomposed in a chemical reaction. Chemical elements consist of atoms which have the same number of protons.

(algebra) An element of an algebraic structure which when applied, in either order, to any other element via a binary operation yields the other element.

In a situation which is entirely suitable, familiar, or enjoyable.

(chemistry, geology) any chemical element which occurs in nature uncombined with other elements; includes the atmospheric gases, several metals and semimetals, and the nonmetals sulfur and carbon

An element that is used to make up an alloy.

plural of chemical element

(chemistry) Any synthetic element having an atomic number greater than that of uranium.

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

(botany) A cell that is linear in form and is responsible for the conduction of water and minerals in the xylem.

A subordinate or secondary element.