12 letters
- somnambulist24
- somnifacient23
- spectrometer21
- spectrometry23
- speedometers19
- spherometers20
- spirometries18
- splenomegaly25
- stapedectomy24
- stereoisomer15
- stichomythia24
- stichomythic27
- stomachaches25
- stomatitides16
- stomatitises15
- streptomyces23
- streptomycin24
- stromatolite16
- subcommittee25
- subcommunity29
- subcomponent27
- subdominants22
- subeconomies23
- superbombers25
- superstardom20
- synaptosomal22
- synaptosomes21
- taphonomists21
- tautomerisms19
- telecommuted24
- telecommuter23
- telecommutes23
- tellurometer18
- tenderometer17
- tensiometers16
- tensiometric19
- thalidomides20
- theobromines21
- thermometers20
- thermometric23
- thrombocytes25
- thrombocytic28
- thrombolytic26
- thromboxanes28
- thymectomies25
- thymectomize34
- tiresomeness16
- toilsomeness17
- tomfooleries19
- tomographies22
- tracheostomy22
- tragicomical24
- trichomonads22
- trichotomies20
- trichotomous21
- trichromatic23
- trigonometry20
- tropomyosins21
- trypanosomes21
- ultracompact26
- unaccustomed25
- unbecomingly29
- uncommercial27
- uncommonness25
- uncompelling28
- uncomplacent28
- uncompounded27
- undecomposed25
- undiplomatic25
- uneconomical25
- unfathomable26
- unhandsomely24
- vasectomized32
- vasectomizes31
- venomousness22
- ventromedial22
- viscometries22
- vitrectomies22
- womanishness22
- workingwoman29
- workingwomen29
- zygomorphies33