Definition of "clavis" [cla•vis]

• A Roman key. (noun)
• A device for restraint of the hands. (noun)
• A glossary. (noun)
• A key; an identification guide; a series of logically organized groups of discriminating information which aims to allow the user to correctly identify a taxon. (noun)

Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License

• "After his election Gregory X set out some hard-line regulations for future elections: his 1274 constitution Ubi periculum contains the first use of the word conclave—from the Latin cum clavis, “with a key.”"
• "Confixa clavis viscera tendens manus, vestigia, redemptionis gratia hic immolata est hostia."
• "Mater sanitatis, clavis coelorum, ala animae quae leves pennas producat, ut in sublime ferat; currus spiritus sancti, vexilium fidei, porta paradisi, vita angelorum, &c."