Bucks rub tree branches with their antlers, displaying dominance and marking territory.

An acronym that stands for both Ratio Utility Billing System, which is a calculation method that uses a compensation factor to associate utility costs among users, as well as for Resident Utility Billing System.

Rationed Utility Billing System', a calculation system for dividing a single metered portion amongst more than one account.

Defects to a coating or substrate caused by friction or abrasion.

Opal pieces initially shaped with waste material/sand removed but not yet cut and polished.