batter rule

English

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Noun

batter rule (plural batter rules)

1. (construction, chiefly historical) An instrument consisting of a (normally wooden) rule or frame, and a plumb line, by which the batter (slope) of a wall is regulated.

References

• “batter”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.