caiman
US /ˈkeɪ.mən/
UK /ˈkeɪ.mən/

1.
caimão
a crocodilian reptile, similar to an alligator, found in Central and South America
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We spotted a caiman basking in the sun by the riverbank.
Avistamos um caimão a apanhar sol na margem do rio.
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The Amazon rainforest is home to several species of caiman.
A floresta amazónica é o lar de várias espécies de caimões.