[L. -acus, Gr. -akos, adj. suffix]

1. A variant of the suffix -ic, used with Greek nouns whose stems end in -i, e,g., cardiac, from cardi- and maniac, from mani-.
2. In pharmacology, a suffix designating an anti-inflammatory drug derived from acetic acid.

-ac is a sample topic from the Taber's Medical Dictionary.

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