11 letters
- brachiation20
- brachiopods23
- braggadocio22
- branchiopod24
- brecciation21
- bromination19
- bronchiolar21
- bronchioles21
- bumptiously25
- burglarious19
- butylations19
- calcination20
- calculation21
- calibration19
- cancelation20
- capaciously24
- capitations18
- captionless19
- captivation22
- carbonation19
- carburetion19
- cardiogenic21
- cardiograms20
- cardiograph22
- cardiopathy22
- cardiotonic19
- castigation17
- castrations15
- catenations16
- cavitations19
- celebration19
- cellobioses19
- cementation19
- centillions18
- cerebration18
- ceremonious19
- certioraris14
- championing26
- charioteers16
- chionodoxas25
- chrismation20
- circulation20
- cliometrics21
- coagulation19
- coaptations18
- coarctation18
- coccidioses21
- coccidiosis21
- cochampions26
- codirection19
- coeducation20
- coevolution21
- cofunctions23
- cogitations17
- cognitional19
- collections20
- colligation19
- collimation20
- collisional18
- collocation20
- colorations16
- combination22
- combustions22
- commination22
- comminution23
- commissions21
- commutation22
- compactions24
- companioned23
- compassions21
- compatriots20
- compendious23
- competition21
- compilation22
- completions22
- complexions29
- composition21
- compression21
- compulsions23
- compunction26
- computation22
- conceptions22
- concessions19
- conclusions21
- concoctions22
- concretions19
- concussions20
- conditional18
- conditioned18
- conditioner17
- condonation18
- conductions21
- confections22
- confessions19
- conflations20
- confliction23
- confusional21
- confutation20
- congelation19
- congestions18
- conjugation28
- conjunction30
- conjuration26
- connections20
- conniptions20
- connotation17
- consciouses19
- consciously22
- consecution20
- consolation17
- consumption23
- contentions17
- contentious17
- contortions16
- contraction19
- contraption19
- contrarious16
- contritions16
- conurbation20
- convections23
- conventions21
- conversions20
- convictions23
- convocation23
- convolution22
- convulsions22
- cooperation18
- copiousness19
- copulations20
- coronations16
- corotations15
- corporation18
- corrections18
- correlation16
- corrugation18
- corruptions19
- coruscation19
- counterions17
- covariation19
- craniometry20
- creationism18
- creationist15
- crenelation17
- crenulation18
- crepitation18
- crimination19
- crucifixion29
- cryobiology24
- culmination21
- cultivation21
- cumulations21
- cunctations20
- cupellation21
- curiosities15
- curiousness17
- cushionless19
- cuspidation20
- cybernation21
- cyclization30
- deaerations13
- deamination17
- debarkation20
- decantation17
- deceptional20
- decimations19
- decisioning19
- declamation20
- declaration17
- declensions18
- declination18
- decollation18
- decondition18
- decorations16
- decryptions21
- decussation17
- dedications17
- defalcation20
- defamations19
- defecations19
- definitions17
- deflections20
- defloration17
- defoliation17
- deformation19
- deglutition17
- degradation16
- degustation16
- dehydration18
- deification19
- delectation17
- delegations16
- deleterious14
- deliciously20
- delineation15
- deliriously17
- delusionary17
- demarcation19
- demolitions17
- denegations16
- denervation18