The actual sound that results from a line of poetry. Metrical rhythm generally involves precise arrangements of stresses or syllables into repeated patterns called feet within a line.
[n] 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)
[n] recurring at regular intervals
[n] the arrangement of spoken words alternating stressed and unstressed elements; "the rhythm of Frost's poetry"
[n] the basic rhythmic unit in a piece of music; "the piece has a fast rhythm"; "the conductor set the beat"
[n] an interval during which a recurring sequence of events occurs; "the neverending cycle of the seasons"