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.
A bone marrow transplant is used to treat a number of illnesses. It can treat people with various blood and bone marrow diseases. It is also used in the treatment of some forms of cancer. The way it works is a doctor first destroys a patient's blood cells or bone marrow.hese blood stem cells are responsible for making our blood. Our blood cells need to be replaced constantly (this is why a blood transfusion only temporarily changes the DNA profile of our blood). What this means in a bone marrow transplant patient is that his or her blood comes from the donor's stem cells.