ˌ ̷ ̷ ̷ ̷ˈ ̷ ̷krəm noun
( plural involu·cra -krə)
Etymology: Latin, from involvere to wrap, envelop
1. : a surrounding envelope or sheath
each group has its involucrum of space from which it drives any encroaching group — C.S.Coon
2.
[New Latin, from Latin]
: involucre
3.
[New Latin, from Latin]
: a formation of new bone about a sequestrum (as in osteomyelitis)