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coquilla nut Definition

co·quilla nut (kō kēl′yə, -kē-)

noun

the fruit of a piassava palm (Attalea funifera) of Brazil: it yields palm oil and has a very hard, brown, ivorylike shell used in cabinetwork and by carvers

Etymology: Sp coquillo or Port coquilho, dim. of coco, coconut