As an adjective, anorexic means suffering from anorexia, or to do with that illness: anorexic behaviour, an anorexic patient. As a noun, people say an anorexic to mean a person with the illness. That noun use is common, but it can sound as if the illness is the whole person; many prefer a person with anorexia.

As an adjective當形容詞用時，anorexicanorexic means suffering from anorexia意思是患有厭食症，or或 to do with that illness跟這個病有關：anorexic behaviouranorexic behaviour（厭食症的行為）、an anorexic patientan anorexic patient（厭食症患者）；as a noun當名詞用時，people say an anorexic人們會說an anorexic，to mean a person with the illness指患有這個病的人；that noun use這種名詞用法 is common很常見，but但 it can sound as if the illness is the whole person聽起來會像是把這個病當成這個人的全部，many prefer很多人比較喜歡說 a person with anorexia「a person with anorexia」（患有厭食症的人）。

People also stretch anorexic, often unkindly, for anyone who looks very thin. That stretch is widespread, and it is unfair: looking thin is not the same as having the illness, and having the illness does not always look one way.

People also stretch人們也會延伸使用 anorexicanorexic，often unkindly常常帶著不友善的語氣，for anyone who looks very thin用來說任何看起來很瘦的人；that stretch這種延伸用法 is widespread很普遍，and而且 it is unfair這樣並不公平：looking thin看起來瘦 is not the same as having the illness跟真的患病不一樣，and而 having the illness does not always look one way患病也不一定看起來都一個樣子。

The word is medical in careful speech. In loose speech it has become a cheap insult about bodies. You do not need that second use.

The word這個字 is medical in careful speech在謹慎的場合是醫學用詞；in loose speech在隨便的口語裡 it has become a cheap insult about bodies它變成了拿身體開玩笑的廉價罵人話；you do not need that second use你不需要用到第二種用法。