the removal of liquid from a solution or mixture at reduced air pressure so that it dries at a lower temperature than would be required at full pressure.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for vacuum drying
Historical Examples of vacuum drying
The thin crepe is folded several times, as in the case of vacuum-drying.The Preparation of Plantation Rubber