9 letters
- officiate18
- orientate10
- orificial16
- originate12
- partition13
- patriotic15
- preatomic18
- protamine16
- reactions13
- reconfirm19
- recontact16
- redaction14
- refection16
- refitting15
- reflation14
- reliction14
- remitting15
- retinitis10
- romantics16
- semitonic16
- stationer10
- striation10
- tackifier19
- taconites13
- tamoxifen23
- tectonism16
- terminate13
- titration10
- tormentil14
- tractions13
- tradition11
- transfect16
- tretinoin11
- triatomic15
- trichinae15
- triclinia14
- tricotine13
- trifectas15
- trinities10
- trinomial14
- triticale13
- ventifact20
- vitiation14