plural of primitive element

(algebra) An element of a ring that is not a zero divisor.

(climatology) Large-scale components of the Earth climate system that may pass a tipping point.

plural of main group element

plural of block level element

plural of rare earth element

(chemistry) A systematic name for an element, derived from the digits of its atomic number to which the suffix -(i)um is appended; normally only used for transuranic elements before or for a short period after they have been created, after which they will be given a non-systematic name.

(chemistry) Any of a group of seventeen soft, lustrous, sometimes magnetic metals that form trivalent salts; they include the lanthanides plus yttrium, scandium, thorium and sometimes zirconium.

(HTML) An HTML element that normally begins on a new line, and may or may not contain other block level elements or inline elements.

Any part of a mechanism that exercises some form of logical control, such as a ratchet, trip, detent or interlock.