Meaning of investment casting

invest'ment cast"ing

Pronunciation: [key]
— Metall. Metall.
  1. a casting process in which an expendable pattern is surrounded by an investment compound and then baked so that the investment is hardened to form a mold and the pattern material may be melted and run off. Also calledCf. lost-wax process.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.