Retention may refer to:

General

  • Recall (memory), in learning, the ability to recall facts and figures in memory
  • Memory and retention in learning
  • Selective retention
  • Cultural retention
  • Customer retention
  • University student retention
  • Employee retention, the ability to keep employees within an organization
  • Forced retention
  • Grade retention, in schools, keeping a student in the same grade for another year (that is, not promoting the student to the next higher grade with their classmates)
  • Retention or retainage of an agreed portion of a contract price until project completion
  • Retention basin
  • Retention election, in the United States court system, a process whereby a judge is periodically subject to a vote in order to remain in the position of judge
  • Retention rate
  • Retention ratio, in company earnings
  • Retention of vision, in magic
  • Water retention (medicine), abnormal accumulation of fluid in the body
  • Urinary retention, the lack or inability to urinate
  • Variable retention, in land management and forestry conservation

Information and records

  • Retention (news server), in Usenet, the time a news server holds a newsgroup posting before deleting it as no longer relevant
  • Data retention, in law and computing
  • Data retention (telecommunication)
  • Retention period, of a document, in records management
  • Retention of title clause, in law

Chemistry

  • Retention agent, a process chemical
  • Carbon dioxide retention
  • Retention of configuration, in chemical reactions
  • ER retention, proteins retained in the endoplasmic reticulum after folding
  • Retention factor

Maths

  • Retention distance
  • Retention uniformity

See also

  • Water retention (disambiguation)
  • Retainer (disambiguation)