preservationrule
nounUK /ˌprɛzəˈveɪʃən ruːl/
US /ˌprɛzərˈveɪʃən ruːl/
A preservation rule is a rule that helps keep something safe so it does not get ruined.
The park has a preservation rule that says you cannot pick the flowers.
RELATED WORDS
OTHER MEANINGS
2. A rule in a library or archive about keeping old books and papers in good condition.
The librarian explained the preservation rule about wearing gloves when handling old maps.
3. A rule in computing about keeping data safe from being lost or changed.
The team followed a preservation rule to back up the files every night.
4. A rule in food storage about keeping food fresh and safe to eat.
A preservation rule says to keep the jam in a cool, dry place.