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romer

Line breaks: romer
Pronunciation: /ˈrəʊmə
 
/

Definition of romer in English:

noun

A small piece of plastic or card bearing perpendicularly aligned scales or (if transparent) a grid, used to determine the precise reference of a point within the grid printed on a map.
Example sentences
  • They can place a car on the surface plate (an accurately measured flat plane) and use what is called a romer arm to calculate the car's dimensions to exact specifications.

Origin

1930s: named after Carrol Romer (1883–1951), its British inventor.

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