| 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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| neritic | (adjective) of or relating to the region of the sea over the continental shelf which is less than 200 meters deep | - |
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| (adjective) relating to the region of shallow water adjoining the seacoast | - |
| 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 |
| (verb) get ready for something difficult or unpleasant | Synonyms: steel |
| nerveless | (adjective) marked by calm self-control (especially in trying circumstances); unemotional | Synonyms: cool, coolheaded |
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| (adjective) lacking strength | Synonyms: feeble |
| nervelessly | (adverb) in a composed and unconcerned manner | Synonyms: coolly, nonchalantly |
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| 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 |
| nervily | (adverb) in a brash cheeky manner | Synonyms: brashly, cheekily |
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| nervism | (noun) the philosophical position adopted by Pavlov that all behavioral and physiological processes are regulated by the nervous system. | - |
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| nervous | (adjective) of or relating to the nervous system | Synonyms: neural |
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| (adjective) unpredictably excitable (especially of horses) | Synonyms: flighty, skittish, spooky |
| (adjective) excited in anticipation | Synonyms: aflutter |
| (adjective) easily agitated | - |
| (adjective) causing or fraught with or showing anxiety | Synonyms: anxious, queasy, uneasy, unquiet |
| nervously | (adverb) in an anxiously nervous manner | - |
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| (adverb) with nervous excitement | - |
| 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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| nervy | (adjective) showing or requiring courage and contempt of danger | - |
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| (adjective) offensively bold | Synonyms: brash, cheeky |
| (adjective) being in a tense state | Synonyms: edgy, high-strung, highly strung, jittery, jumpy, overstrung, restive, uptight |