Direct Answer • Key Takeaway
: An External Chiefly Connective Tissue Covering of an Organ Especially: the External Coat of a Blood Vessel.
: An External Chiefly Connective Tissue Covering of an Organ Especially: the External Coat of a Blood Vessel.
: An External Chiefly Connective Tissue Covering of an Organ Especially: the External Coat of a Blood Vessel.