A large tropical tree native to South America, valued for its hard, dense wood used in construction.
From Tupi (Brazilian indigenous language) 'acá' or 'acapu', reflecting the Portuguese colonial adoption of indigenous tree names from the Amazon region.
The acapu tree's wood is so dense it sinks in water and can last over 40 years in harsh conditions—shipbuilders and dock builders treasure it, but the tree's slow growth makes sustainable harvesting challenging.
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