9 letters
- ruminator14
- runcinate15
- saturnine12
- situation11
- stationer10
- striation10
- strontium14
- tarnation11
- tautening14
- tautomers13
- tenanting14
- terminate13
- titaniums14
- titration10
- tormentil14
- tradition11
- transient11
- transmute14
- tremulant15
- tretinoin11
- triatomic15
- tribunate14
- tricotine13
- triennial12
- triennium15
- trinomial14
- truanting14
- trunnions13
- tuitional12
- turbinate14
- turnstone12
- uintahite13
- uintaites11
- unanimity17
- uncannier16
- uncertain15
- unilinear13
- unitarian12
- unmanlier16
- unmeaning18
- unmitring17
- untainted13
- untrained13
- unwritten15
- uraninite12
- urinating14
- urination12
- urinemias14
- vernation15