homophobiaPronunciation: /ˌhɒməˈfəʊbɪə, ˌhəʊmə-/Translate homophobia | into German | into Italian Definition of homophobia noun [mass noun] an extreme and irrational aversion to homosexuality and homosexual people. Derivatives homophobePronunciation: /ˈhɒm-, ˈhəʊm-/ noun homophobicPronunciation: /-ˈfəʊbɪk/ adjective Origin: 1960s: from homosexual + -phobiahomophobia in other Oxford dictionaries Definition of homophobia in the US English dictionary