V chemical symbol, vanadium; symbol, volt; vision; visual acuity.
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V domain the variable region or domain of immunoglobulins.
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V factor see diphosphopyridine nucleotide.
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V region variable region of immunoglobulins.
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v tach ventricular tachycardia.
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V to Y plasty a tension-relieving technique for closure of a skin incision in which a V-shaped incision is made alongside the primary incision and then closed in a Y shape.
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v. [L.] vena (vein).
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v.s. vibration seconds (the unit of measurement of sound waves).
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v/v volume (of solute) per volume (of solvent).
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VA/Q see ventilation:perfusion ratio.
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