Definition

1. Adjective:
   • Derived from the same individual: "Autologous" describes something, typically biological material like blood, tissue, or cells, that originates from and is used in the same individual. It is a key term in medicine, particularly in transplants and transfusions.

Usage

• The term is used almost exclusively in medical and biological contexts.
• It is commonly paired with nouns like , , , , , or .
• It contrasts with (from a different individual of the same species) and (from a different species).

Examples

• Adjective:
  • The patient received an autologous bone marrow transplant after chemotherapy.
  • Autologous blood donation before elective surgery reduces the risk of transfusion reactions.
  • Surgeons used autologous skin grafts from his thigh to repair the burn.

Advanced Usage

• "Autologous chondrocyte implantation": A surgical procedure where a patient's own cartilage cells are used to repair damaged joint cartilage.
• "Autologous serum": Serum derived from a patient's own blood, sometimes used in eye drops for severe dry eye.

Variants and Related Words

• Autograft (noun): A tissue or organ graft transplanted from one part of an individual's body to another.
  • The autograft from her hip was used to repair her knee ligament.
• Autotransfusion (noun): The process of reinfusing a patient's own blood.
  • Autotransfusion was employed during the surgery to minimize the need for donor blood.

Synonyms

• Self-derived: Originating from oneself. (Less technical)
• Autogenous: Having the same origin; originating within the same individual. (A technical synonym, often used interchangeably in specific contexts like ).

Antonyms

• Allogeneic: Derived from a different individual of the same species.
• Xenogeneic: Derived from an individual of a different species.
• Heterologous: Derived from a different species or a different type.

Adjective

1. derived from organisms of the selfsame individual
   • autologous blood donation