English edit

Etymology edit

pseudo- +‎ element

Noun edit

pseudoelement (plural pseudoelements)

  1. (computing, Internet, Cascading Style Sheets) An object in code that behaves like an HTML element but is not a true element.
  2. In a chemical formula, something that is called by a chemical symbol, but is not an element; e.g. Et may mean ethyl group, or Ph (or Φ) may mean phenyl group. (See "Skeletal formula" on Wikipedia; said article has a subsection titled "Pseudoelement symbols".)