| Vaginitis | |
| Vaginosis | See Vaginitis. |
| Vagus Nerve | |
| Valine | |
| Valley Fever | See Coccidioidomycosis. |
| Vanadium | |
| Varicose Veins | |
| Varicosis | Unnatural and permanent distention of the veins. |
| Vascular | |
| Vascular Dementia | |
| Vasculitis | |
| Vasoconstriction | |
| Vasoconstrictor | See Vasoconstriction. |
| Vasoconstrictors | See Vasoconstriction. |
| Vasodilation | |
| Vasodilator | See Vasodilation. |
| Vasomotor Cephalalgia | Migraine headache. |
| Vasomotor Dysfunction | Disorder involving blood vessel constriction. |
| Vasoneurosis | Vascular abnormality without discernible physiological cause. |
| Vata | See Dosha. |
| Vegan | |
| Veganism | See Vegan. |
| Vegans | See Vegan. |
| Vegetarian | |
| Vegetarianism | See Vegetarian. |
| Vegetarians | See Vegetarian. |
| Vegetative Dystonia | Abnormal tissue tonicity resulting from autonomic nervous system dysfunction. |
| Vegetative Nervous | Vegetative nervous system: Portion of the nervous system associated with involuntary functions; autonomic nervous system. |
| Venectasia | Phlebectasia, dilation of the veins. |
| Venereal Warts | See Genital Warts. |
| Venous | |
| Venous Tone | Firmness of tension of vascular walls. |
| Ventricular Tachycardia | |
| Vermifuge | Agent used to treat worm infestation. |
| Vertigo | |
| Very Low Density Lipids | |
| Vesicle | Small sac. |
| Villi | |
| Viral Iritis | See Iritis. |
| Viri | See Virus. |
| Virion | |
| Virions | See Virion. |
| Virus | Any of a vast group of minute structures composed of a protein coat and a core of DNA and/or RNA that reproduces in the cells of the infected host. Capable of infecting all animals and plants, causing devastating disease in immunocompromised individuals. Viruses are not affected by antibiotics, and are completely dependent upon the cells of the infected host for the ability to reproduce. |
| Viruses | See Virus. |
| Virustatic | Inhibiting viral action. |
| Vitamin A | |
| Vitamin B1 | See Thiamine. |
| Vitamin B12 | See Cobalamin. |
| Vitamin B2 | See Riboflavin. |
| Vitamin B3 | See Niacin. |
| Vitamin B6 | |
| Vitamin C | |
| Vitamin D | |
| Vitamin E | |
| Vitamin K | |
| Vitex | |
| VLDL | See Very Low Density Lipids. |
| Voice Box | See Larynx. |
| Voluntary Muscle | See Striated Muscle. |
