Search Result for "rhythmically": 
Wordnet 3.0

ADVERB (1)

1. in a rhythmic manner;
- Example: "the chair rocked rhythmically back and forth"


The Collaborative International Dictionary of English v.0.48:

Rhythmically \Rhyth"mic*al*ly\, adv. In a rhythmical manner. [1913 Webster]
WordNet (r) 3.0 (2006):

rhythmically adv 1: in a rhythmic manner; "the chair rocked rhythmically back and forth"