metro cattolico
- noun
- /ˈmɛtroʊ kɑːˈtoʊlɪkoʊ/
- Archaic
- In his 1675 proposal, Burattini described the metro cattolico as based on the seconds pendulum.
Examples
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The metro cattolico was nearly, but not exactly, the same length as the contemporary metre.
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Historians of measurement sometimes refer to the metro cattolico when discussing early attempts at standardization.
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The metro cattolico was defined in the 17th century.
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In historical texts, the metro cattolico often appears.
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In his 1675 proposal, Burattini described the metro cattolico as based on the seconds pendulum.
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Historians of measurement sometimes refer to the metro cattolico when discussing early attempts at standardization.
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The metro cattolico was nearly, but not exactly, the same length as the contemporary metre.
Synonyms
A fixed amount used as a standard to measure length, weight, or volume
A former unit of length based on a pendulum that swings once in one second
A historical measure of length equal to the length of a pendulum that takes one second to swing
A unit for length like a meter or inch
A way to measure length, like a meter or inch
Surface Forms
Morphology
metro + cattolico
The phrase is Italian (literally 'catholic metre' from metro = metre/meter and cattolico = catholic), but the historical technical meaning (a unit defined by the length of a seconds pendulum) is not derivable from those constituents. Knowing the literal words would not lead a B1 learner to the specialised, historically contingent sense, so the expression is idiomatic/lexicalised and unpredictable.
Etymology
Metro cattolico was an early Italian 'metre' defined by a weight on a string that swung once in a second, a simple way to fix a standard length. It was proposed by Tito Livio Burattini in 1675, and that's why the term refers to a historical measure very close to, but not exactly the same as, the modern metre.