10 letters
- octameters16
- octonaries14
- orientates11
- osmometric19
- pantomimes20
- portamenti17
- protamines17
- rampancies20
- rationales12
- reanimates14
- recitation14
- recontacts17
- redactions15
- remitments17
- remittance17
- retraction14
- retransmit14
- rheostatic15
- sacraments17
- sanatorium15
- sarcolemma20
- saturation12
- scammonies20
- scattering16
- scleromata17
- sectarians14
- semantical18
- senatorial12
- senatorian12
- separation14
- smattering16
- stammering19
- starvation15
- stationary13
- stationers11
- stationery13
- stentorian12
- sterigmata15
- stramonies14
- stramonium18
- tarantisms14
- tarnations12
- tarriances14
- tautomeric17
- tearstains11
- tectonisms17
- termagants16
- terminates14
- terminator14
- tetracaine14
- tormentils15
- trabeation14
- tractional15
- trajection23
- tramontane15
- transacted15
- transactor14
- traumatise14
- traumatism17
- tricotines14
- trisection14
- vacationer18