Definition

1. Noun:
   • A surgical procedure in which tissue or an organ is transferred from one individual to another of the same species who is not genetically identical. The recipient's immune system typically recognizes the transplanted tissue as foreign and may attack it, requiring medical suppression to prevent rejection.

Usage

• Allograft is a technical medical term used primarily in healthcare, surgery, and biology.
• It functions as a countable noun (e.g., , ).
• It is often used with verbs like , , , , or .

Examples

• The patient received a bone allograft to repair the severe fracture.
• Rejection is a major risk factor for any organ allograft, such as a kidney or heart transplant.
• Surgeons used a cadaveric skin allograft as a temporary covering for the burn wound.

Advanced Usage

• "Allograft rejection": The immune-mediated destruction of the transplanted tissue by the recipient's body.
  • The patient was monitored closely for signs of acute allograft rejection.
• The term specifies the genetic relationship between donor and recipient, distinguishing it from an autograft (from oneself) or a xenograft (from a different species).

Variants and Related Words

• Homograft: A synonym for allograft, though is now the more standard term.
• Allogeneic (adj): Describes the condition of being genetically different within the same species. An allograft is an .
• Transplant (n/v): The general act or instance of transferring tissue or an organ; an allograft is a type of transplant.

Synonyms

• Homograft
• Allogeneic transplant

Antonyms

• Autograft: A transplant of tissue from one part of a person's body to another part of their own body.
• Isograft: A transplant between genetically identical individuals (e.g., identical twins).
• Xenograft: A transplant from a donor of a different species.

Noun

1. tissue or organ transplanted from a donor of the same species but different genetic makeup; recipient's immune system must be suppressed to prevent rejection of the graft