(historical) A hierarchical system of race classification created by Spanish elites in Hispanic America during the eighteenth century.

The institutionalized system of racial and social stratification in 17th-century Mexico. / Variety, in reference to and in names of Portugal grapes or wine.

Cast adrift or ashore; marooned. / Shipwrecked. / Cast out; rejected or excluded from a group.

(nautical) A shipwrecked sailor. / A discarded person or thing. / An outcast; someone cast out of a group or society.

A percussion instrument (idiophone) of Spanish origin, consisting of a pair of concave shells joined on one edge by a string, held in the hand and used to produce clicking sounds; any hand-held percussion idiophone that can be played with the fingers, such as bones or spoons.

(music, chiefly in the plural) A single handheld percussion instrument consisting of a pair of concave shells or shell-shaped parts joined on one edge by string.

plural of castaway

One who plays the castanet.

plural of castanetist

(organic chemistry) A pyrrolizidine alkaloid, found in seeds of trees of the genus Castanosperma, that is a glucosidase inhibitor