13 letters
- estrangements20
- experimenters27
- experimenting30
- extensometers24
- extremenesses24
- fermentations21
- flameproofers26
- flameproofing29
- flamethrowers25
- fluorimetries21
- fluorochromes26
- fluorometries21
- forestallment22
- fragmentarily25
- fragmentating25
- fragmentation23
- fragmentizing34
- fulsomenesses22
- fundamentally27
- galvanometers24
- galvanometric27
- gamesmanships27
- gametogeneses21
- gametogenesis21
- gemeinschafts27
- geometrically25
- geometricians22
- governmentese24
- handcraftsmen27
- hemacytometer26
- hemocytometer26
- hereditaments20
- hermeneutical24
- heterogametes20
- heterogametic23
- hexamethonium32
- homeomorphism29
- homeothermies23
- homeschoolers24
- homeschooling27
- homestretches23
- homopolymeric30
- hymenopterans25
- hymenopterons25
- hymenopterous25
- hypermetrical27
- hypermetropia26
- hypermetropic29
- immediateness21
- immensenesses21
- imprisonments24
- inclinometers22
- incrementally25
- indomethacins24
- infotainments22
- infringements24
- instrumentals20
- instrumenting22
- integumentary23
- interlacement22
- intermeddlers20
- intermeddling23
- intermediated19
- intermediates18
- intermembrane24
- intermetallic22
- interpermeate20
- intersegments20
- intumescences25
- inveiglements25
- irksomenesses21
- isochromosome24
- isomerization26
- isometrically23
- jackhammering40
- kapellmeister25
- katzenjammers42
- lamellibranch28
- languishments24
- laryngectomee25
- lightsomeness22
- lissomenesses18
- loathsomeness20
- lowerclassmen25
- magnetometers22
- magnetometric25
- maladjustment32
- maltreatments21
- meaninglessly24
- measurability23
- mecamylamines29
- mechanization32
- medicamentous25
- mediterranean19
- meetinghouses22
- megakaryocyte29
- megaloblastic26
- megalomaniacs26
- megalopolises23
- megalopolitan24
- megasporangia24
- melancholiacs27
- melanizations28
- melanogeneses21
- melanogenesis21
- mellifluently27
- mellifluously27
- melodiousness20
- melodramatics24
- melodramatise21
- melodramatist21
- melodramatize30
- meltabilities21
- memorableness24
- memorialising23
- memorializing32
- memorizations29
- meningococcal30
- meningococcic32
- meningococcus30
- menstruations19
- mensurability24
- mercantilisms24
- mercantilists21
- mercenariness21
- mercerization29
- merchandisers23
- merchandising26
- merchandizing35
- mercilessness21
- mercurialness22
- meritocracies22
- meritoriously20
- merrythoughts25
- mesencephalic29
- mesencephalon27
- mesotheliomas22
- metabolically27
- metabolizable33
- metacercariae22
- metacercarial23
- metachromatic27
- metafictional24
- metalanguages23
- metalliferous22
- metallization28
- metallography27
- metallophones24
- metallurgical25
- metallurgists21
- metalworkings27
- metamerically26
- metamorphisms27
- metamorphosed25
- metamorphoses24
- metamorphosis24
- metaphosphate26
- metaphysician27
- metasomatisms22
- metastability22
- metastasizing28
- metencephalic29
- metencephalon27
- meteoriticist19
- meteorologies19
- meteorologist19
- methacrylates24
- methaqualones30
- methemoglobin28
- methodologies22
- methodologist22
- methotrexates25
- methoxychlors33
- methylmercury30
- methysergides23
- metronidazole28
- metropolitans21
- metrorrhagias20
- microelements24
- microfilament27
- mimeographing29
- misalignments24
- misdemeanants22
- misemployment29
- misgovernment27
- mismanagement26
- misplacements27
- misprogrammed28
- misremembered26
- misstatements20
- mistreatments20
- momentariness21
- momentousness22
- monofilaments25
- monometallism25
- monometallist22
- monumentality25
- monumentalize32
- morphometries24
- multifilament26