al·ter·na·tion 
(ôl′tər-nāshən, ăl′-)
(ôl′tər-nāshən, ăl′-)n.
Successive change from one thing or state to another and back again.
- "Peter the Great."
- Peter the Hermit
- pethidine
- petiolar
- petiolate
- petiole
- petioled
- petiolule
- petit
- petit bourgeois
- petit-bourgeois
- petite
- petite bourgeoisie
- petite marmite
- petiteness
- petit four
- petition
- petitionary
- petitioner
- petitio principii
- petit jury
- petit larceny
- petit mal seizure
- petit point
- petits pois