| nicotine |
an alkaloid poison that occurs in tobacco; used in medicine and as an insecticide
출처: wordnet.princeton.edu/perl/webwn
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|---|---|
| nicotinic acid |
niacin: a B vitamin essential for the normal function of the nervous system and the gastrointestinal tract
출처: wordnet.princeton.edu/perl/webwn
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| nictitate |
blink: briefly shut the eyes; "The TV announcer never seems to blink"
출처: wordnet.princeton.edu/perl/webwn
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| nitrogen cycle |
the circulation of nitrogen; nitrates from the soil are absorbed by plants which are eaten by animals that die and decay returning the nitrogen back to the soil
출처: wordnet.princeton.edu/perl/webwn
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| nictitating membrane |
a protective fold of skin in the eyes of reptiles and birds and some mammals
출처: wordnet.princeton.edu/perl/webwn
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