from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of the genetically determined antigens on the surface of cell membranes that serve to identify a cell as self or nonself. These antigens determine whether a tissue graft will be accepted by an organ transplant recipient.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. any of the human leukocyte antigens (HLAs) which are the determinants of histocompatibility
Sorry, no etymologies found.