• entry termThe non-preferred term in a cross reference that leads to a term in a controlled vocabulary. Also known as “lead-in term” In thesauri, the relationship indicator for this type of term is U (USE); its reciprocal is UF (USED FOR). See also preferred term.
  • entry vocabularyThe set of non-preferred terms (USE references) that lead to terms in a controlled vocabulary. NOTE: This term is used by some controlled vocabulary designers to represent the preferred as well as the non-preferred terms in a controlled vocabulary.
  • eponymA term incorporating the name of a real or mythical person, generally the discoverer of a phenomenon or inventor of an object, e.g., Herculean labor, Parkinson's disease, pasteurization.
  • equivalence relationshipA relationship between or among terms in a controlled vocabulary that leads to one or more terms that are to be used instead of the term from which the cross-reference is made; begins with the word SEE or USE.