killer cell 
noun Physiology
A white blood cell (a type of lymphocyte) which destroys infected or cancerous cells.The thinking which lies behind much of the new work is that killer cells in the immune system can be trained to attack malignant tumours when they wouldn't otherwise....
- Researchers believe that gray cells may be a primitive form of our immune system's human killer cells.
- The metaphors used for cancer are often military terms such as war on cancer, killer cells, magic bullets, and the need for patients to adopt a fighting spirit.
- artificial porcelain
- artificial reality
- artificial respiration
- artificial rubber
- artificial selection
- artificial silk
- artificial sunlight
- artificial surface
- artificial sweetener
- artificial system
- artificial turf
- artificial year
- artificing
- artificious
- artificiously
- artify
- artilect
- artilise
- artiller
- artilleried
- artillerist
- artillery
- artillery boat
- artillery company
- artillery driver