Princeton's WordNet(0.00 / 0 votes)Rate this definition: 1  mushroom(noun) common name for an edible agaric (contrasting with the inedible toadstool) 2  mushroom(noun) mushrooms and related fleshy fungi (including toadstools, puffballs, morels, coral fungi, etc.)
A cornea transplant is an operation used to remove all or part of a damaged cornea and replace it with healthy cornea tissue from the eye of a suitable donor. A cornea transplant is an operation used to remove all or part of a damaged cornea and replace it with healthy cornea tissue from the eye of a suitable donor.
Bone marrow transplant. Overview. A bone marrow transplant is a procedure that infuses healthy blood stem cells into your body to replace your damaged or diseased bone marrow. A bone marrow transplant is also called a stem cell transplant. A bone marrow transplant may be necessary if your bone marrow stops working and doesn't produce enough healthy blood cells. Bone marrow transplants may use cells from your own body (autologous transplant) or from a donor (allogeneic transplant).