Main Entry: in·vo·lu·crum Pronunciation: "in-v&-'lü-kr&m Function: noun Inflected Form: pluralin·vo·lu·cra/-kr&/ : a formation of new bone about a sequestrum (as in osteomyelitis)
involucrum in·vo·lu·crum (ĭn'və-l&oomacr;'krəm) n.pl.in·vo·lu·cra (-krə) An enveloping sheath or membrane, such as the sheath of new bone that forms around a sequestrum.