Wiktionary
autologous
a. Derived from part of the same individual (i.e. from the recipient rather than a different donor).
WordNet
autologous
adj. derived from organisms of the selfsame individual; "autologous blood donation" [ant: homologous, heterologous]
Usage examples of "autologous".
Durner was their primary suspect because he was known to have undergone a circumferential autologous penile engorgement.
Poisoning Cassie with her own filth so that she’d get an infection but it would be an autologous one—self-infection, so that no foreign organism would show up on the blood tests.