| prepared or converted from a natural state by subjecting to a special process | (used of rubber) treated by a chemical or physical process to improve its properties (hardness and strength and odor and elasticity) |
| freed from impurities by processing | (used of concrete or mortar) kept moist to assist the hardening |
| subjected to a special process or treatment | freed from illness or injury |
| | (used of tobacco) aging as a preservative process |
| | (used especially of meat) cured in brine |
| | (used of hay e.g.) allowed to dry |