anorexia

anorexia
[ˌanəˈrɛksɪə]
noun
  1. [mass noun]lack or loss of appetite for food (as a medical condition), in particular
    食欲缺乏,厌食,尤指
    ■(亦作 anorexia nervosa )an emotional disorder characterized by an obsessive desire to lose weight by refusing to eat, and a distorted perception of one's own body
    神经性厌食症
语源
  1. late 16th cent.: via late Latin from Greek, from an- 'without' + orexis 'appetite'
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