De*fec"tion (?), n. [L. defectio: cf. F. défection. See Defect.] Act of abandoning a person or cause to which one is bound by allegiance or duty, or to which one has attached himself; desertion; failure in duty; a falling away; apostasy; backsliding. "Defection and falling away from God." Sir W. Raleigh.

The general defection of the whole realm.