- A febrile condition in which there are alternating periods of chills, fever, and sweating. Used chiefly in reference to the fevers associated with malaria.
- A chill or fit of shivering.
[Middle English, from Old French (fievre) ague, sharp (fever), from Medieval Latin (febris) acūta, from Latin, feminine of acūtus. See acute.]
aguish a'gu·ish (ā'gyū-ĭsh) adj.aguishly a'gu·ish·ly adv.
aguishness a'gu·ish·ness n.





