hirundinePronunciation: /ˈhɪrʌndʌɪn, hɪˈrʌndʌɪn/Definition of hirundine noun Ornithology a songbird of the swallow family (Hirundinidae). Origin: mid 19th century: from Latin hirundo 'swallow' + -ine1hirundine in other Oxford dictionaries Definition of hirundine in the US English dictionary