| carnauba | (noun) Brazilian fan palm having an edible root; source of a useful leaf fiber and a brittle yellowish wax | Synonyms: carnauba palm, Copernicia cerifera, Copernicia prunifera, wax palm |
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| (noun) hard yellowish to brownish wax from leaves of the carnauba palm used especially in floor waxes and polishes | Synonyms: carnauba wax |
| imbauba | (noun) tropical American tree with large peltate leaves and hollow stems | Synonyms: Cecropia peltata, snake wood, trumpet-wood, trumpet tree, trumpetwood |
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| scuba | (noun) a device (trade name Aqua-Lung) that lets divers breathe under water; scuba is an acronym for self-contained underwater breathing apparatus | Synonyms: Aqua-Lung, aqualung |
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| succuba | (noun) a female demon believed to have sexual intercourse with sleeping men | Synonyms: succubus |
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| tuba | (noun) the lowest brass wind instrument | Synonyms: bass horn, sousaphone |
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