se·mat·ic | \sə̇ˈmatik\

Definition of sematic 

: serving as a warning of danger used of conspicuous colors of a poisonous or noxious animal

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First Known Use of sematic

1890, in the meaning defined above

History and Etymology for sematic

Greek sēmat-, sēma sign + English -ic

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The first known use of sematic was in 1890

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to reject or criticize sharply

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