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.
- 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.
1930s: named after Carrol Romer (1883–1951), its British inventor.
Words that rhyme with romeraroma, carcinoma, chroma, coma, comber, diploma, glaucoma, Homer, lymphoma, melanoma, misnomer, Oklahoma, Omagh, roamer, Roma, sarcoma, soma
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Line breaks: romer
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