Enter a clue or pattern or both:
The Clue
Blood-typing system (3 letter answer)
The Answer
ABO
Tags
Notes
The answer ABO is common and appears about once every 225 puzzles.
Related Clues
Australian indigene
Australian native
Blood classification
Blood groups
Blood letters
Finnish port
Nigerian town
Turku, to Swedes
Typing letters?
Typing system
Blood classification system
Blood type system
Blood-typing letters
Blood-typing syst.
Blood typing system
Finnish port, to Swedes
Kind of system, in medicine
Swedish name of Turku
Definition
ABO as a noun:
1. (Aborigine, Abo, Aboriginal, native Australian, Australian Aborigine) = a dark-skinned member of a race of people living in Australia when Europeans arrived