monomania [m^on-om-an-e*e] noun.
An obsession of one thing only.
{mono- + -mania}
monomaniac noun.
monomaniacal adjective.
monomaniacally adverb.
Pronunciation key:/p/ pen; /b/ but; /t/ two; /d/ do; /ch/ chair; /j/ joy; /k/ call; /g/ log; /f/ fin; /v/ vat; /ð/ that; /th/ thing; /s/ see; /z/ zoo; /sh/ she; /zh/ beige; /h/ ham; /m/ man; /n/ no; /ng/ ring; /l/ lip; /r/ run; /w/ we; /y/ yes; /ɑ/ father; /ēē/ see; /ĭ/ bit; /ĕ/ bed; /ur/ murk; /ă/ cat; /ŭ/ luck; /œ/ wood; /ū/ moon; /ā/ day; /ī/ light; /oy/ boy; /ō/ no; /ou/ out; /ɑr/ far; /ir/ ear; /ĕr/ there; /ə/ item