use '?' for JOKER (blank)

From letters B, A, C, T, E, R, I, O, L, O, G, I, S, T, S  I made following words

15 letter words

bacteriologists[20]

14 letter words

bacteriologist[19]

13 letter words

borosilicates[17]

12 letter words

borosilicate[16], osteoblastic[16], tribologists[15]

11 letter words

obstetrical[15], sarcologies[14], tribologies[14], scatologies[14], globosities[14], teratologic[14], egotistical[14], tribologist[14], cetologists[14], recitalists[13], astrologies[12]

10 letter words

bricolages[15], cabriolets[14], cobaltites[14], ectoblasts[14], obstetrics[14], egoistical[13], obligators[13], ecologists[13], biologists[13], cetologist[13], litterbags[13], cogitators[13], globetrots[13], aerobiosis[12], socialites[12], sectorials[12], sibilators[12], clitorises[12], solicitors[12], recitalist[12], triticales[12], atrocities[12], trilobites[12], osteoblast[12], coelostats[12], osteoclast[12], tribalists[12], bristliest[12], eroticists[12], sitologies[11], serologist[11], litigators[11], gristliest[11], solitaires[10], solitaries[10], torosities[10], sitosterol[10]

9 letter words

bricolage[14], biologics[14], cogitable[14], biosocial[13], irascible[13], albicores[13], bracioles[13], cabrioles[13], sociables[13], crossable[13], cabriolet[13], bootlaces[13], boracites[13], brocatels[13], basilects[13], obstacles[13], bractless[13], cabestros[13], cabrestos[13], bisectors[13], cobaltite[13], ectoblast[13], brattices[13], bractlets[13], obstetric[13], abstricts[13], aerologic[12], biologies[12], serologic[12], logicises[12], graciosos[12], etiologic[12], obligator[12], obligates[12], obligatos[12], ecologist[12], biologist[12], orgiastic[12], bigotries[12], glossitic[12], logistics[12], escargots[12], litterbag[12], cogitator[12], globetrot[12], cogitates[12], egotistic[12], strategic[12], gastritic[12], cottagers[12], socialise[11], aerolitic[11], socialite[11], clarities[11], eristical[11], realistic[11], laborites[11], strobilae[11], loricates[11], sclerotia[11], sectorial[11], sibilator[11], elicitors[11], solicitor[11], sibilates[11], stabilise[11], silicates[11], socialist[11], colitises[11], soloistic[11], scleritis[11], ostracise[11], isosteric[11], storables[11], strobiles[11], cloisters[11], coistrels[11], coistrils[11], barstools[11], sorbitols[11], colorists[11], cortisols[11], lateritic[11], triticale[11], trilobate[11], tectorial[11], trilobite[11], coelostat[11], tribalist[11], eroticist[11], librettos[11], corotates[11], blastiest[11], stilbites[11], isostatic[11], costliest[11], gasoliers[10], girasoles[10], seraglios[10], glairiest[10], trilogies[10], grisliest[10], glossator[10], litigator[10], litigates[10], glottises[10], gastritis[10], oralities[9], solitaire[9], listerias[9], serialist[9], ostiaries[9], isolators[9], oestriols[9], troilites[9], totalises[9], tortoises[9]

8 letter words

biologic[13], boscages[13], albicore[12], braciole[12], cabriole[12], sociable[12], calibers[12], calibres[12], aerobics[12], isobaric[12], bricoles[12], corbeils[12], bicolors[12], brocolis[12], logicise[11], glaciers[11], graciles[11], gracilis[11], garboils[11], obligers[11], gracioso[11], obligors[11], glacises[11], calories[10], carioles[10], laicises[10], gasolier[9], girasole[9], seraglio[9]