16 letters
- microenvironment32
- microgametocytes32
- micrographically36
- microinstruction28
- microlepidoptera30
- micromanagements32
- micromanipulator31
- micrometeorology30
- microphotographs34
- microphotography36
- microphotometers30
- microphotometric33
- microprogramming36
- microprojections38
- micropublishings35
- microradiographs30
- microradiography32
- microsporangiate28
- microsporophylls34
- microvasculature32
- militaristically27
- misanthropically32
- miscommunication34
- monochromaticity33
- monopolistically31
- monosyllabically34
- monosynaptically33
- monotheistically29
- montmorillonitic29
- morphometrically34
- multicellularity30
- multiculturalism31
- multihandicapped35
- multiplicatively35
- municipalization38
- naturalistically26
- nephrotoxicities32
- neurasthenically28
- neurophysiologic31
- neuropsychiatric31
- nonbibliographic35
- noncannibalistic30
- nonchronological31
- noncommunicating35
- noncommunication33
- noncommunicative36
- noncontradiction27
- noncontradictory28
- nondeterministic26
- nonmaterialistic25
- nonmathematician30
- nonparticipating30
- nonparticipation28
- nonparticipatory29
- nonphilosophical33
- nonpsychological35
- nonschizophrenic41
- nonsignificantly31
- nucleophilically35
- nullificationist27
- objectifications38
- obstructionistic27
- onomatopoeically30
- operationalistic24
- ophthalmological34
- organoleptically30
- ornithologically29
- orthogenetically28
- orthographically32
- orthopsychiatric31
- overapplications31
- overarticulating28
- overcommunicated35
- overcommunicates34
- overcomplicating36
- overenthusiastic27
- paedogenetically30
- paleobotanically31
- paleographically34
- paradigmatically32
- paradoxicalities31
- paramagnetically32
- paraphrastically31
- parasympathetics32
- pathophysiologic34
- periphrastically31
- perniciousnesses25
- perpendicularity31
- personifications27
- petrographically33
- phantasmagorical31
- pharmaceutically35
- pharmacodynamics37
- pharmacokinetics35
- phenomenological33
- phenylketonurics34
- phonogrammically37
- phonographically36
- photoautotrophic30
- photoduplicating33
- photoduplication31
- photodynamically35
- photographically35
- photomicrographs34
- photomicrography36
- photomorphogenic35
- phylogenetically34
- physiognomically36
- physiopathologic34
- pictorialization33
- piezoelectricity37
- plethysmographic37
- politicalization34
- polyphyletically37
- polyrhythmically38
- polysyllabically36
- polysynaptically35
- pornographically34
- positivistically30
- postencephalitic32
- postsynaptically32
- practicabilities29
- precertification29
- predictabilities27
- premodifications30
- prenotifications27
- prequalification37
- pretechnological32
- prognostications26
- programmatically34
- prophylactically37
- prosopographical33
- pseudoclassicism31
- pseudoscientific31
- psychoanalytical34
- psychobiological36
- psychohistorical32
- psycholinguistic34
- psychometrically36
- psychometricians33
- psychopathically38
- psychopathologic37
- psychophysically40
- psychophysicists36
- psychotomimetics35
- quadricentennial34
- quadruplications36
- quantificational35
- quasicrystalline34
- quasiperiodicity35
- radioautographic28
- radiographically31
- recertifications26
- reclassification27
- refortifications26
- relativistically28
- requalifications34
- resolidification25
- ridiculousnesses24
- roentgenographic30
- roentgenological27
- romanticizations33
- saccharification31
- sedimentological28
- semicolonialisms28
- semiconservative31
- semidomesticated27
- semipornographic33
- sensationalistic22
- serviceabilities27
- sesquicarbonates33
- sesquicentennial33
- sociolinguistics27
- solicitousnesses22
- stenographically31
- stereomicroscope28
- stereophonically29
- stereoscopically29
- stroboscopically32
- superficialities27
- superromanticism30
- superserviceable31
- supraventricular30
- surrealistically25
- suspiciousnesses25
- syllabifications30
- sympathomimetics35
- syncategorematic30
- systematicnesses25
- technicalization36
- teratogenicities22
- terminologically30
- theocentricities25
- thermodynamicist31
- thermometrically31
- thermoplasticity30
- thermostatically28
- thrombocytopenic36
- traditionalistic22
- trafficabilities29