natural killer cell

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a small killer cell that destroys virus-infected cells or tumor cells without activation by an immune system cell or antibody.

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Question 1 of 12

On the farm, the feed for chicks is significantly different from the roosters’; ______ not even comparable.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

In 2007 he said he had discovered a cure for AIDS using natural herbs.
The Shadowy U.S. Veteran Who Tried to Overthrow a Country|Jacob Siegel|January 6, 2015|DAILY BEAST
Total oil production figures include crude oil, natural gas liquids, and other liquid energy products.
Fact-Checking the Sunday Shows: Jan. 4|PunditFact.com|January 5, 2015|DAILY BEAST
On top of oil, the United States produces significantly more natural gas than Saudi Arabia.
Fact-Checking the Sunday Shows: Jan. 4|PunditFact.com|January 5, 2015|DAILY BEAST
More to the point, Huckabee has a natural appeal to a party that has come to represent the bulk of working class white voters.
Can Huckabee Convert the GOP’s Moneymen?|Lloyd Green|January 4, 2015|DAILY BEAST

Barry showed me his room—a one bedroom with a killer view of Riverbank State Park and the Hudson.
His First Day Out Of Jail After 40 Years: Adjusting To Life Outside|Justin Rohrlich|January 3, 2015|DAILY BEAST
It is full of poetic feeling, and the flesh tints are unusually natural.
Women in the fine arts, from the Seventh Century B.C. to the Twentieth Century A.D.|Clara Erskine Clement
The place was well defended by earthworks and natural parapets, and for several hours the issue of the contest was doubtful.
The Philippine Islands|John Foreman
In the old world, poverty seemed, and poverty was, the natural and inevitable lot of the greater portion of mankind.
The Unsolved Riddle of Social Justice|Stephen Leacock
Whatever the species, it is well to imitate the natural conditions as much as possible in the way of soil.
How to Know the Ferns|S. Leonard Bastin
Piedmont alone vies with her, and is improving far more rapidly, but Lombardy has great natural capacities peculiarly her own.
Glances at Europe|Horace Greeley