noun
definition
A bundle of neurons with their connective tissue sheaths, blood vessels and lymphatics.
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(nonstandard, colloquial) A neuron.
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(botany) A vein in a leaf; a grain in wood.
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Courage; boldness; audacity; gall.
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Patience; stamina; endurance, fortitude.
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(in the plural) One's neural structures considered collectively as, and conceptually equated with, one's psyche.
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(in the plural) Mental agitation caused by fear, stress or other negative emotions.
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(polymer technology) The elastic resistance of raw rubber or other polymers to permanent deformation during processing.
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(obsolete) Sinew, tendon.