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semantron

noun
se·​man·​tron | \ sə̇ˈman‧ˌträn\
plural -s

Definition of semantron

: a wooden plank or an iron bar that gives a sound like a gong when struck with a mallet and that takes the place of a bell in Eastern Orthodox churches

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First Known Use of semantron

1849, in the meaning defined above

History and Etymology for semantron

Late Greek sēmantron sign, signal, semantron, from Greek, seal, sign, from sēmainein to signify

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The first known use of semantron was in 1849

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