A large wooden or metal ball that drops at a predetermined time to enable sailors to check their marine chronometers from their boats offshore.
time-ball em 30 segundos
- (noun) A large wooden or metal ball that drops at a predetermined time to enable sailors to check their marine chronometers from their boats offshore.
Meanings
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1
noun A large wooden or metal ball that drops at a predetermined time to enable sailors to check their marine chronometers from their boats offshore.
Summary
A large wooden or metal ball that drops at a predetermined time to enable sailors to check their marine chronometers from their boats offshore.
- (noun) A large wooden or metal ball that drops at a predetermined time to enable sailors to check their marine chronometers from their boats offshore.
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