natural killer cell

natural killer cell

noun Immunology.
a small killer cell that destroys virus-infected cells or tumor cells without activation by an immune system cell or antibody.
Compare killer T cell.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Natural killer cell is always a great word to know.
So is slumgullion. Does it mean:
a stew of meat, vegetables, potatoes, etc.
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
American Heritage
Medical Dictionary

natural killer cell n.

Abbr. NK cell A killer cell that is activated by double-stranded RNA and fights off viral infections and tumors.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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