idiosyncrasy


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1. Idiosyncrasy- A peculiarity of temperament. An individual hyper-sensitiveness, as to a drug or food. 2. Apart from the tendency to trance, however, my general health appeared to be good; nor could I perceive that it was at all affected by the one prevalent malady -- unless, indeed, an idiosyncrasy in my ordinary sleep may be looked upon as superinduced.