Nutritionist
1) In a hospital or nursing home, a person who plans and/or formulates special meals for patients. It can also simply be a euphemism for a cook who works in a medical facility but who does not have extensive training in special nutritional needs. 2) In clinical practice, a specialist in nutrition. Nutritionists can help patients with special needs, allergies, health problems, or a desire for increased energy or weight change devise healthy diets. Some nutritionists in private practice are well- trained, hold a degree and are licensed. Depending on state law, however, a person using the title may not be trained or licensed at all.
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New variant Creutzfeldt-Jakob disease.
- Nyctalopia
Night blindness, impaired vision in dim light and in the dark, due to impaired function of certain specialized vision cells (the rods) in the retina. “Nyctalopia” comes from the Greek “nyct” (night) + “aloas” (obscure or blind) + “opsis” (vision). Nyctalopia is also called day sight, nocturnal amblyopia, and nyctanopia.
- Nyctanopia
Impaired vision in dim light and in the dark, due to impaired function of the rods in the retina. Nyctanopia is a classic finding with vitamin A deficiency. Also known as day sight, nocturnal amblyopia, and nyctalopia.
- Nyctophobia
Pathological fear of the dark.
- Nymph
A stage in the life cycle of certain arthropods, such as ticks and lice. The nymph stage is between the nit and the adult louse stages. A nymph louse looks like an adult but is smaller. Nymphs mature into adults about 7 days after hatching. To live, the nymph must feed on blood.