Dictionary.net

the basic rhythmic unit in a piece of music; "the piece has a fast rhythm"; "the conductor set the beat"

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)

an interval during which a recurring sequence of events occurs; "the neverending cycle of the seasons"

recurring at regular intervals

the arrangement of spoken words alternating stressed and unstressed elements; "the rhythm of Frost's poetry"

the basic rhythmic unit in a piece of music; "the piece has a fast rhythm"; "the conductor set the beat"

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)

an interval during which a recurring sequence of events occurs; "the neverending cycle of the seasons"

recurring at regular intervals

the arrangement of spoken words alternating stressed and unstressed elements; "the rhythm of Frost's poetry"

In the widest sense, a dividing into short portions by a regular succession of motions, impulses, sounds, accents, etc., producing an agreeable effect, as in music poetry, the dance, or the like.

A division of lines into short portions by a regular succession of arses and theses, or percussions and remissions of voice on words or syllables.

The harmonious flow of vocal sounds.

In the widest sense, a dividing into short portions by a regular succession of motions, impulses, sounds, accents, etc., producing an agreeable effect, as in music poetry, the dance, or the like.

A division of lines into short portions by a regular succession of arses and theses, or percussions and remissions of voice on words or syllables.

The harmonious flow of vocal sounds.

Applied to regular order of movements, as pulsation.

Flowing motion: metre: regular recurrence of accents: harmony of proportion.

Ordered succession of motions, accents, &c.

Rhythmic, rhythmical.

Regular cadence, as in music or poetry.

Regularity of movement, as seen in heart pulsation, or movement of telegraph plant leaves.

The order of proportion, as regards time, which reigns between the different movements of an organ- as of the organism in health and disease. Thus, rhythm is applied to the diurnal variations of the pulse; and to the paroxysmal movements of an intermittent.

A measured movement.

Regular movement or periodically recurring action, such as is seen in the thorax in respiration and in the heart beats.

n. [Greek] A dividing of time into short portions by a regular succession of motions, sounds, &c., producing an agreeable effect, as in music, dancing, or the like;— movement in musical time, or the periodical recurrence of accent;— a division of lines into short portions by a regular succession of percussions and remissions of voice on words or syllables;— the harmonious flow of vocal sounds.