/ ˈsiːkwɪn; NAmE / noun
a small round shiny disc sewn onto clothing as decoration
► se·quinned / ˈsiːkwɪnd; NAmE / adjective [ usually before noun ]
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WORD ORIGIN
late 16th cent. (originally referring to a Venetian gold coin): from French , from Italian zecchino , from zecca a mint, from Arabic sikka a die for coining. The current sense dates from the late 19th cent.