3 syllables:
mawmetry

4 syllables:
algometry, allometry, arthrometry, astrometry, atmometry, barometry, chorometry, chronometry, clinometry, conchometry, cosmometry, cystometry, cytometry, echometry, fetometry, fluorometry, foetometry, geometrie, geometry, hodometry, horometry, hydrometry, hygrometry, hypsometry, isometry, mahometry, manometry, micrometry, morphometry, odometry, optometry, orthometry, osmometry, phonometry, phorometry, photometry, pneumometry, psychometry, psychrometry, pulmometry, pyrometry, rheometry, scotometry, seismometry, spectrometry, spirometry, stichometry, stylometry, tachometry, thermometry, viscometry

5 syllables:
amperometry, anemometry, anthropometry, archaeometry, areometry, argentometry, audiometry, axonometry, baculometry, cardiometry, cephalometry, conductometry, craniometry, crystallometry, cyanometry, densitometry, diffractometry, dilatometry, dioptometry, dynamometry, elextrometry, ellipsometry, eudiometry, galvanometry, goniometry, haemadrometry, heliometry, hemadrometry, iodometry, keratometry, magnetometry, nephelometry, olfactometry, ophthalmometry, oscillometry, osteometry, ozonometry, piezometry, plane geometry, pluviometry, pneumatometry, pupillometry, radiometry, reflectometry, refractometry, respirometry, sensitometry, sociometry, somatometry, stereometry, stoechiometry, stoichometry, tacheometry, tensiometry, triggernometry, trigonometrie, trigonometry, tympanometry, uranometry, urinometry

6 syllables:
absorptiometry, alcoholometry, apomecometry, astrophotometry, bronchospirometry, chronoamperometry, cytophotometry, epipedometry, esthesiometry, fluorophotometry, gastrotonometry, haemadromometry, haematachometry, haemotachometry, hemadromometry, histomorphometry, interferometry, polygonometry, potentiometry, solid geometry, spectrophotometry, sphygmomanometry, stoichiometry, volumenometry

7 syllables:
angioscotometry, descriptive geometry, doctor of optometry, projective geometry, spherical geometry, taxicab geometry

8 syllables:
analytic geometry, coordinate geometry, elementary geometry, hyperbolic geometry, microspectrophotometry, ophthalmodynamometry, parabolic geometry, variable-geometry

9 syllables:
analytical geometry

3 syllables:
albany, awfully, balsamy, cautiously, cross-country, dauntlessly, doggedly, falsity, flawlessly, frostily, gaudily, laudably, lawfully, lawlessly, myology, paucity, plausibly, raucously, saucily, solemnly, solvency, tawdrily, thoughtfully, thoughtlessly, wantonly, wrongfully

4 syllables:
androgyny, apostasy, cosmology, craniotomy, dishonestly, garbology, hydropathy, ichthyology, implausibly, inaudibly, incautiously, metonymy, misology, necrology, phlebotomy, posology, rheology, scatology, sclerotomy, strabotomy, topology, unlawfully

5 syllables:
allergology, episiotomy, fossilology, herpetology, inexhaustibly, meritocracy, parisology, teratology, tracheotomy, volcanology, vulcanology

6 syllables:
cardiomyopathy, homoeopathy

7 syllables:
haemoglobinopathy, hemoglobinopathy, otolaryngology