The definition of rhythm is the study of rhythm, stress, and pitch in speech is called prosody: it is a topic in linguistics and poetic, where it means the number of lines in a verse, the number of syllables in each line and the arrangement of those syllables as long or short, accented or unaccented.
Example:
We romped until the pans Slid from the kitchen shelf;
My mother's countenance
Could not unfrown itself.
Example:
We romped until the pans Slid from the kitchen shelf;
My mother's countenance
Could not unfrown itself.