A large South American tree of the arum family, or its edible fruit and tubers used in traditional cuisine.
From Portuguese 'aroa' or Brazilian Portuguese sources, deriving from indigenous Tupi languages of South America. It refers to various plants in the aroid family used for food.
Aro trees were so important to indigenous Amazonian peoples that entire seasonal migrations followed their fruiting cycles—they provided both food and materials, making them forest supermarkets!
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