a. and sb. Med. [ad. mod.L. antephialticus (Hoffmann, a. 1740), f. Gr. ἀντί against + ἐφιάλτ-ης nightmare: see -IC.]

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  A.  adj. Good against the nightmare. B. sb. A medicinal agent of this nature.

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[1811.  Hooper, Med. Dict., Antephialtica, medicines which prevent the night-mare].

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1853.  Mayne, Exp. Lex., Antephialtic, opposed to, or curative of ephialtes or night-mare.

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