Glossary

Category: V

  • Vertex distance

    The distance from the front surface of the cornea to the back surface of the correcting lens.  

  • Very low calorie diet

    A diet containing fewer than 800 calories of energy per day. Adherence to a VLCD results in rapid weight loss and must be monitored medically. A commercially available diet in which caloric intake may be from 400 to 800 kcal/day. The very low calorie diet is usually in the form of a powdered supplement that…

  • Volume foam

    A styling product best used to lift up, thicken, volumize, and support all hairstyles. An essential product for fine, limp, and lifeless hair.  

  • Virgin head

    Anyone who has never had any hair color or other chemical treatment service performed on her hair.  

  • Vent brush

    The air goes through the vents in the brush as you blow-dry, allowing for faster, more effective styling in short to midlength hairstyles.  

  • Vulnerable groups

    Segments of the populatron most susceptible to malnutrition. These have been generally identified as weaning children, pregnant women and lactating (nursing) mothers especially of low-income groups.  

  • Vitamin B-Group

    This group consists of about a dozen water soluble vitamins, each with a specific function. Among them are thiamine (B1), riboflavin ( B2), pyridoxine (B6), niacin, folic acid, biotin, pantothenic acid and cyano cobalamine (B12).  

  • Vegetable Oils

    Liquid fats obtained from the kernels of several oilseeds (sesame, rape, mustard) and certain legumes (groundnut, soya-bean), or from fruit coats (coconut, palm, olive). This term refers to any type of oil that is derived from a plant source, such as corn, olives, sunflower seeds, soybeans, cottonseed, peanuts, and others. These oils are commonly used…

  • Vanaspati

    Any refined edible vegetable oil or oils subjected to a process of hydrogenation in any form.  

  • Vulvitis

    Inflammation of the vulva, causing intense irritation. Inflammation of the vulva, usually producing a burning sensation and intense itching. It may be caused by infection (e.g., candidiasis) or by local irritation (e.g., from poorly fitting underwear). Inflammation of the vulva (external female genitals). Vulvitis usually causes redness, swelling, and itching of the labia (lips) and…