NOW adv.
t; precisely now. [Obs.] "Why, even now now, at holding up of this finger, and before the turning down of this." J. Webster (1607). -- Now . . . now, alternately; at one time . . . at another time. "Now high, now low, now master up, now miss." Pope.
PERIODIC; PERIODICAL a.
Happening, by revolution, at a stated time; returning regularly, after a certain period of time; acting, happening, or appearing, at fixed intervals; recurring; as, periodical epidemics. The periodic return of a plant's flowering. Henslow. To influence opinion through the periodical press. Courthope.…
PERITONEUM n.
ines the cavity of the abdomen, or the whole body cavity when there is no diaphragm, and, turning back, surrounds the viscera, forming a closed, or nearly closed, sac. [Written also peritonæum.]