Other forms: interspersed; interspersing; intersperses
When you intersperse something, you scatter it with spaces in between, the way you intersperse vegetable seeds along a row in a garden bed.
A wallpaper pattern might intersperse polka dots with bright flowers, and a writer might intersperse colorful details throughout an essay on the sword fishing industry. If you place things here and there, at intervals or leaving room between each item, you intersperse them. The Latin root is interspersus, "strewn or scattered," and in the mid-1500s the word intersperse was used mostly to mean "diversify by introducing things at intervals."