(mineralogy) A monoclinic-prismatic dark green mineral containing calcium, iron, magnesium, manganese, oxygen, silicon, sodium, and zinc.

(law) An agreement in which a creditor promises not to enforce a debt.

Archaic form of petrel.

plural of peterel

Alternative form of pederero

plural of peterero

Alternative form of Saint Petersburg / Alternative form of St. Petersburg

A surname transferred from the given name.

A short-lived former county of East Anglia, England. Created from the merger of the Soke of Peterborough and the county of Huntingdonshire. Created in 1965 and absorbed into Cambridgeshire in 1974.

(slang, archaic) A shill bidder at an auction.