Precasts is a 8 letter English word. It's valid Scrabble word worth 11 points. It's valid Words with friends word worth 13 points.
You can make 497 anagrams from letters in precasts (aceprsst).
First recorded in 1860-65; pre- + cast
Since the bridge is on a grade, it was necessary to precast this in sheets the width of the curb.
The Moonship, actually, was assembled from precast individual cells which then were welded together.