A monstrance, also known as an ostensorium (or an ostensory), is the vessel used in Roman Catholic, Old Catholic and Anglican churches for the more convenient exhibition of some object of piety, such as the consecrated Eucharistic host during Eucharistic adoration or Benediction of the Blessed Sacrament. It is also used as reliquary monstrance for the public display of relics of some saints. The word monstrance comes from the Latin word monstrare, while the word ostensorium came from the Latin word ostendere. Both terms, meaning "to show", are used for vessels intended for the exposition of the Blessed Sacrament, but ostensorium has only this meaning.