Here's what rhymes with malacological.
logical ecological illogical analogical biological psychological theological archaeological pathological chronological geological ontological zoological archeological dialogical urological horological ideological technological morphological neurological mythological phonological astrological neuropsychological radiological topological typological serological tautological ethological gynaecological audiological physiological sociological methodological eschatological immunological meteorological pedagogical pharmacological etiological philological teleological ethnological mineralogical aetiological gynecological toxicological dermatological ornithological speleological genealogical histological phenomenological hydrological terminological embryological hematological haematological musicological epidemiological bacteriological microbiological neurophysiological biotechnological psychophysiological electrophysiological Words that almost rhyme with malacological
tropical prodigal periodical subtropical nontropical astronautical microscopical semitropical conical chronicle comical ironical economical rhetorical dropsical hospital categorical diabolical uneconomical taxonomical historical philosophical astronomical metaphorical symbolical ahistorical theosophical gastronomical pocketsful paradoxical unhistorical prehistorical