jacamarPronunciation: /ˈdʒakəmɑː/Definition of jacamar noun an insectivorous bird of tropical American forests, with a long pointed bill, a long tail, and plumage that is typically iridescent green above. Family Galbulidae: several genera and species Origin: early 19th century: from French, apparently from Tupijacamar in other Oxford dictionaries Definition of jacamar in the US English dictionary