| natural selection |
the process whereby members of a species who have more surviving offspring than others pass their traits on to the next generation, whereas the less favored do not do so to the same degree.
출처: farahsouth.cgu.edu/dictionary/
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| natural ventilation |
Natural ventilation is a type of general ventilation which depends on natural instead of mechanical means for air movement. Natural ventilation can depend on the wind or the difference in temperature from one area to another to move air through a building. Therefore, it is unpredictable and unreliable. (See also Local Exhaust Ventilation, Mechanical Ventilation and Ventilation.)
출처: ccinfoweb.ccohs.ca/help/msds/msdstermse.html
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| native |
Plants which are part of the original vegetation of the North American continent.
출처: www.lib.ksu.edu/wildflower/glossary.html
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| natural |
A symbol (G) which is used to cancel the effect of a sharp or a flat.
출처: www.dilettantesdictionary.com/index.php
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| natural killer cells |
NK cells belong to the innate immune system and are specialized to kill target cells that are either infected with viruses or host cells that have become cancerous. CD56 is a surface marker specific to NK cells.
출처: www.jco.org/cgi/glossarylookup
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