Hear a word and type it out. How many can you get right?
TAKE THE QUIZ“natural killer”
We have one entry that includes the term natural killer.
natural killer cell
noun: a large granular lymphocyte capable especially of destroying tumor cells or virally infected cells without prior exposure to the target cell and without having it presented with or marked by a histocompatibility antigen
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Merriam-Webster unabridged
