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.
1 Another name is added to the national transplant waiting list every 12 minutes. 2  On average, 21 people die every day from the lack of available organs for transplant. 3  Seven percent of people on the waiting listâmore than 6,500 each yearâdie before they are able to receive a transplant. The cornea is the most commonly transplanted tissue. 2  More than 40,000 corneal transplants take place each year in the United States. 3  A healthy person can become a âliving donorâ by donating a kidney, or a part of the liver, lung, intestine, blood or bone marrow. 4  More than 6,000 living donations occur each year.