Other forms: transplanted; transplanting; transplants
Use the verb transplant to describe what you do when you move a cactus into a bigger container, or what a doctor does when she places a donor organ — like a kidney or lung — into the body of a patient.
When you transplant your favorite rose bush, you carefully dig it up and re-plant it in another spot in the yard, maybe one that gets more sunlight. You can also use the word as a noun to describe the act of doing such a thing: "The liver transplant was a success." The word's origin is simple: the Latin trans, or "across," plus plantare, which means "to plant."