antiperiodic

adjective
an·ti·pe·ri·od·ic | \ ˌant-i-ˌpir-ē-ˈäd-ik, ˌan-ˌtī- \

Medical Definition of antiperiodic 

(Entry 1 of 2)

: preventing periodic returns of disease

antiperiodic

noun

Medical Definition of antiperiodic (Entry 2 of 2)

: an antiperiodic agent

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