| A | B |
| Altruism | Selfless concern for others. |
| Bionics | The science of designing instruments or systems modeled after living organisms. |
| Brain-dead Donor | An organ donor who has been declared legally dead because his or her brain has stopped functioning. |
| Brain functioning | The ways that the human brain responds to stimuli and processes information. |
| Cadaver | A dead person's body. |
| Cardiac-dead donor | An organ donor who has been declared legally dead because his or her heart and other organs have stopped functioning. |
| Cornea | The transparent tissue in the eye that covers the iris and pupil. |
| Donor | A person who donates something, such as an organ. |
| Harvesting | The act of gathering something desired, such as organs for transplantation. |
| Heart | The organ in humans and animals that pumps blood through the body. |
| Implant | A substance, organ, or piece of tissue that is inserted within the body, such as an artificial heart. |
| Kidney | The organ that separates water and waste products from the blood and excretes them in the form of urine. |
| Liver | The organ that, among other functions, helps to detoxify poisonous substances that enter the body. |
| Non-heartbeating organ donor | A potential form of organ donor who has a brain injury from which he or she will never recover and who cannot survive without the help of machines. |
| Organ | A vital component of the body, made up of specialized tissues, that carries out specialized functions required in living beings. |
| Organ Donation | The process of making organs available for transplantation in other individuals. |
| Presumed Consent | An individual is presumed to be an organ donor after death unless he or she prepares special documentation objecting to the practice of organ donation. |
| Procurement | The act of obtaining something desired, such as organs for transplantation. |
| Transplant | To transfer an organ from one individual to another. |
| Transplantation | The act of transplanting something, such as an organ from one individual into another individual. |
| Waiting list | A list containing names of individuals awaiting something, such as an organ transplant. |