shakeout

noun4

1. •
   The separation of molds from their flask, the castings from the molding sand, and potentially the cores from the castings.
2. •
   An event that causes marginal constituents to be eliminated.

   • The dot-com shakeout of the 1990s left only the most durable, most profitable, and most well backed companies surviving.
3. •
   The shaking of an object to spread it wide and eject any debris.

   • A cargo parachute that has been packed and issued for use, but not actually used for airdrop, does not require a shakeout. — 1989
4. •
   The shaking of one's arms or legs, in order to resist muscle fatigue.