Regularly recurring; kept up at stated times or intervals without interruption of regularity; recurring every time. archaic.

Recurring at regular intervals; periodic, adj.1 2b.

Made, done, occurring, provided, etc., every term or at regular fixed intervals; (in earlier use esp.) paid or due every term or at regularly…

(a) adv. in the manner of a clock; like clockwork, with regularity; (b) adj. resembling clockwork in being mechanical, automatic, or characterized…

Belonging to or lasting for a term or definite period; esp. relating to a university or law term; occurring every term or for the duration of a…

Regular or predictable in action, operation, or occurrence; consistent; invariable. Obsolete.

Recurring or taking place repeatedly at (short) uniform intervals; characterized by repetition of this sort.

Medicine and Veterinary Medicine. Of, relating to, or characterized by regularly recurring symptoms; (of symptoms) recurring at regular intervals.

Resembling clockwork or the motion of clockwork in being mechanical, automatic, or characterized by regularity or precision.

Repeatedly or continually recurring; recurrent. Now rare.

(a) adv. in the manner of clockwork; with mechanical regularity; (b) adj. resembling clockwork or the motion of clockwork; that happens regularly…

transferred and figurative. That ‘ebbs and flows’; periodic, intermittent; alternating, varying.

Periodical, recurrent at more or less regular intervals.