10 letters
- prolactins18
- pronations15
- pronominal19
- provincial22
- punctation19
- punctilios19
- purloining19
- relocation15
- retinacula16
- rotational12
- ruinations13
- rumination16
- sinoatrial12
- sonication15
- spoliation15
- supination16
- tarpaulins16
- thiouracil17
- tinctorial15
- tractional15
- trapanning18
- trinocular16
- truncation16
- tyrannical18
- ulceration16
- ultrasonic16
- uncritical19
- unitarians13
- unoriginal16
- unpastoral16
- unplaiting19
- unromantic19
- urinations13
- urticarial15
- urtication15
- vocational19