From Biology-Online Dictionary | Biology-Online Dictionary
1. In dentistry, covering or enveloping wholly or in part an object such as a denture, tooth, wax form, crown, etc., with a refractory investment material before curing, soldering, or casting.
2. In psychoanalysis, allocating to or charging an object with psychic energy or cathexis.
vacuum investing, the investing of a pattern within a vacuum.