substratum

On the other hand, there is a whole substratum of talent who are not at the negotiating table and yet are seriously affected by the red carpet suspension: the stylists and hair and makeup artists who help create the image-making magic, and whose salaries are generally paid for by the studios, not the talent.

The message and the relentless pursuit of perfection it implored served as the substratum of Eric Musselman’s life.

A review of Season 1 recommended it for 7-year-olds and the “usual substratum of catatonics who are afraid to do anything else on Tuesday nights except watch television,” but it became a hit, and despite a scarcity of lines in the first season, Winkler’s tenderhearted, lusty, defeated car mechanic became the breakout star.

This is what we refer to as "fossil capital," It ties various brands of capitalists together in a dependence on fossil energy, the material substratum for any number of commodities: a car manufacturer needs steel for its factory and gasoline for the vehicles on the road.

It “supports diverse biological communities representative of hard substratum in deep water” according to the Joint Nature Conservation Committee.