Chron"ic (?), a. [L.
chronicus, Gr. ? concerning time, from ? time: cf. F.
chronique.] 1. Relating to time;
according to time.
2. Continuing for a long time; lingering;
habitual.
Chronic disease, one which is
inveterate, of long continuance, or progresses slowly, in
distinction from an acute disease, which speedly
terminates.