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- a. nervosa a mental disorder manifested by extreme fear of becoming obese and an aversion to food, usually occurring in young women and often resulting in life-threatening weight loss, accompanied by a disturbance in body image, hyperactivity, and amenorrhea.
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an·orex·ia .an-ə-'rek-sē-ə, -'rek-shə n
1) loss of appetite esp. when prolonged
2) ANOREXIA NERVOSA
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n.
loss of appetite.
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an·orex·ia (an″o-rekґse-ə) [Gr. “want of appetiteâ€] lack or loss of the appetite for food.Medical dictionary. 2011.