Definition of tucum
plural -s
1
or less commonly
tucum palm
a
:any of several chiefly Brazilian palms of the genus Astrocaryum (especially A. tucuma) with leaf bases that yield a coarse fiber used especially for cordage and hats and with seeds that yield an edible oil
b
:a low spiny Brazilian palm (Bactris setosa) with leaves that yield a long strong fiber held to resemble wool and used locally for bags or other containers, fishing nets, and shoemakers' twines
2
:the fiber of a tucum
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