| nerd | (noun) an insignificant student who is ridiculed as being affected or boringly studious | Synonyms: dweeb, grind, swot, wonk |
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| (noun) an intelligent but single-minded expert in a particular technical field or profession | - |
| nerita | (noun) a neritid gastropod having a short smooth or spirally ridged shell with thick usually toothed outer lip and toothed operculum | - |
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| neritid | (noun) operculate seasnail of coastal waters with a short spiral shell | Synonyms: neritid gastropod |
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| neritina | (noun) ornately marked and brightly colored snails of brackish waters | - |
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| nerve | (noun) the courage to carry on | Synonyms: heart, mettle, spunk |
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| (noun) impudent aggressiveness | Synonyms: boldness, brass, cheek, face |
| (noun) any bundle of nerve fibers running to various organs and tissues of the body | Synonyms: nervus |
| nervelessness | (noun) fearless self-possession in the face of danger | Synonyms: coolness |
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| nerveroot | (noun) once common rose pink woodland orchid of eastern North America | Synonyms: Cypripedium acaule, moccasin flower |
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| nerves | (noun) control of your emotions | - |
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| (noun) an uneasy psychological state | Synonyms: nervousness |
| nervism | (noun) the philosophical position adopted by Pavlov that all behavioral and physiological processes are regulated by the nervous system. | - |
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| nervousness | (noun) a sensitive or highly strung temperament | - |
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| (noun) the anxious feeling you have when you have the jitters | Synonyms: jitteriness, jumpiness, restiveness |
| (noun) an uneasy psychological state | Synonyms: nerves |
| nervure | (noun) one of the horny ribs that stiffen and support the wing of an insect | Synonyms: vein |
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| (noun) any of the vascular bundles or ribs that form the branching framework of conducting and supporting tissues in a leaf or other plant organ | Synonyms: vein |
| nervus | (noun) any bundle of nerve fibers running to various organs and tissues of the body | Synonyms: nerve |
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