alternation
US /ˌɑːl.tɚˈneɪ.ʃən/
UK /ˌɑːl.tɚˈneɪ.ʃən/
1.
afwisseling
a situation in which one thing repeatedly happens or exists after another:
:
•
Flowers and trees are planted to produce an attractive alternation of light and shade in the garden.