Noun
practice squad (plural practice squads)
(American football) A group of players who are not eligible to play in games, but who participate in practices.
In other words, the elevation is temporary — the player will revert to the Practice Squad the next business day following the game. Source: Internet
You forget UDFA’s and Practice Squad guys, they get paid poo. practice squad is only 65k a year and if you get called up to start or play its still 65k. Source: Internet
Practice squad safety is active for his first NFL game after being elevated from the practice squad. Source: Internet