[f. LAG v.2 + -ING1.] The action or condition of LAG v.2
1600. Holland, Livy, VI. vii. 221. What meanes this strange and unwonted lagging behind?
1862. Dana, Man. Geol., 41. The westward tropical flow is due simply to a slight lagging of the waters.
1867. Denison, Astron. without Math., 123. This is called the priming and lagging of the tides.
1897. Allbutts Syst. Med., II. 915. Cardiac irregularity is a frequent consequence of tobacco-smoking, lagging and intermission being the earlier forms of it.