(n) genus of chiefly small rock-loving ferns; in some classification systems it is placed in the family Polypodiaceae or Adiantaceae, Syn.genus Pellaea
(n) a disease caused by deficiency of niacin or tryptophan (or by a defect in the metabolic conversion of tryptophan to niacin); characterized by gastrointestinal disturbances and erythema and nervous or mental disorders; may be caused by malnutrition or alcoholism or other nutritional impairments, Syn.mal rosso, Saint Ignatius' itch, mal de la rosa, Alpine scurvy, mayidism, maidism
The Collaborative International Dictionary of English (GCIDE) v.0.53
n. [ It. pelle skin + agro rough. ] (Med.) An affection of the skin, characterized by redness, especially in exposed areas, scaling and shedding of the skin, and accompanied with severe gastrointestinal disturbance and nervous symptoms. It is due to a deficiency of niacin (vitamin B3; nicotinic acid) and protein in the diet, and may be caused by malnutrition, or, in some cases, by a heavy dependence on maize for food. It was at one time (ca. 1890) endemic in Northern Italy, and was called Alpine scurvy. It may also be caused by alcoholism or diease causing an impairment of nutrition. It is also called St. Ignatius's itch, maidism, mal de la rosa, mal rosso, and psychoneurosis maidica. A variety of pellagra seen in children is called infantile pellagra or kwashiorkor. [ Stedman ] [ 1913 Webster +PJC ]
a. [ It. pellagroso: cf. F. pellagreux. ] (Med.) Pertaining to, or affected with, or attendant on, pellagra; as, pellagrous insanity. [ Webster 1913 Suppl. ]
แสดงได้ทั้งความหมายของคำเดี่ยว และคำผสม ได้อย่างถูกต้อง
เช่น Secretary of State=รัฐมนตรีต่างประเทศของสหรัฐฯ (ในภาพตัวอย่าง),
High school=โรงเรียนมัธยมปลาย
