अर्थ : The basic rhythmic unit in a piece of music.

अर्थ : Recurring at regular intervals.

अर्थ : An interval during which a recurring sequence of events occurs.

अर्थ : The arrangement of spoken words alternating stressed and unstressed elements.

अर्थ : Natural family planning in which ovulation is assumed to occur 14 days before the onset of a period (the fertile period would be assumed to extend from day 10 through day 18 of her cycle).