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Anonychia (anonychia; an-– otritsa. a prefix + Greek onychos, onyx – a nail) – lack of a nail plate or plates.


  • Anonychia inborn (anonychia congenita; synonym: an aplasia of nails) – one of anomalies of development which is shown in the form of an anonychia with replacement of a nail plate with atrophic epidermis.
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Scientists from the Oxford university conducted a number of researches during which they came to a conclusion that vegetarianism can be harmful to a human brain as leads to decrease in its weight. Therefore scientists recommend not to exclude completely from the diet fish and meat.