Category: N

Part of the National Institutes of Health of the United States Department of Health and Human Services, is the federal government’s principal agency for cancer research. NCI conducts, coordinates, and funds cancer research, training, health information dissemination, and other programs with respect to the cause, diagnosis, prevention, and treatment of cancer. Access the NCI Web…

NK cells. A type of white blood cell that contains granules with enzymes that can kill tumor cells or microbial cells. Also called large granular lymphocytes (LGL). Specialised T-cells with the continuous task of identifying and eliminating cells recognised as being foreign or non-self. Innate immune cells that destroy virus-infected and cancerous body cells by…

Used to describe an individual who has never taken a certain drug or class of drugs (e. g., AZT-naive, antiretroviral-naive), or to refer to an undifferentiated immune system cell.  

Substance that lessens pain by causing depression of the central nervous system. Derived from the Greek narkotikos, meaning “benumbing.”    

Network.  

The turning or positioning of leaves or leaflets at night (as in many Leguminosae/Fabaceae species).  

The pressing together of leaves or leaflets at night to reduce transpiration.  

Flowering at night.  

From the latin non vidi, ‘I have not seen’, placed after a specimen citation in a publication if the specimen has not been seen by the author.  

A small nut, often used in Cyperaceae for their often small hardened fruits. (In Cyperaceae) hardened, usually minute, one-seeded fruit, the surface of which may be smooth to variously patterned and a diagnostic character for many species. Often called an achene in literature on Cyperaceae. A small or diminutive nut, similar to an achene but…