conservation
n.
The repair or stabilization of materials through chemical or physical treatment to ensure that they survive in their original form as long as possible.
The profession devoted to the preservation of cultural property for the future through examination, documentation, treatment, and preventive care, supported by research and education.
Notes
Conservation1 counters existing damage, as distinguished from preservation2, which attempts to prevent damage. Conservation does not always eliminate evidence of damage; restoration includes techniques to return materials to their original appearances (which may include fabrication of missing pieces). - However, conservation2 is often used to include preservation1 activities.
