noun
                                                the basic rhythmic unit in a piece of music
                                                                                                Synonyms
                                                
                                                
                                                                                                Examples
                                                
                                                                                                        - the piece has a fast rhythm
- the conductor set the beat
 
                                                                                        
                                                noun
                                                recurring at regular intervals
                                                                                                Synonyms
                                                
                                                                                                                                                                        regular recurrence
                                                                                                                                                            
                                                
                                                                                             
                                                                                        
                                                noun
                                                an interval during which a recurring sequence of events occurs
                                                                                                Synonyms
                                                
                                                
                                                                                                Examples
                                                
                                                                                                        - the never-ending cycle of the seasons
 
                                                                                        
                                                noun
                                                the arrangement of spoken words alternating stressed and unstressed elements
                                                                                                Synonyms
                                                
                                                                                                                                                                        speech rhythm
                                                                                                                                                            
                                                
                                                                                                Examples
                                                
                                                                                                        - the rhythm of Frost's poetry
 
                                                                                        
                                                noun
                                                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)
                                                                                                Synonyms
                                                
                                                                                                                                                                        rhythm method of birth control
                                                                                                                                                                                                                                rhythm method
                                                                                                                                                                                                                                calendar method of birth control
                                                                                                                                                                                                                                calendar method