eternity ring 
noun
A ring given as a symbol of lasting affection, typically set with an unbroken circle of gems: a gold and diamond eternity ring...
- Many women also wear their gold wedding ring with a diamond engagement ring and an eternity ring.
- The rings were my aunt's original wedding ring, her engagement ring and her eternity ring.
- In the latest burglary, they took a three-string set of pearls, given to me by my mother, and an eternity ring belonging to my mother-in-law.
- transmontane
- transmundane
- transmural
- transmutability
- transmutable
- transmutation
- transmutational
- transmutationist
- transmutative
- transmute
- transmuter
- transnational
- transnationalism
- transnationally
- transoceanic
- transom
- transomed
- transom window
- transonic
- trans-Pacific
- transparence
- transparency
- transparent
- transparently
- transparentness