Bible Encyclopedias
Inch

1911 Encyclopedia Britannica

(0. Eng. ynce from Lat. uncia, a twelfth part; cf. "ounce," and see As), the twelfth part of a linear foot. As a measure of rainfall an "inch of rain" is equivalent to a fall of a gallon of water spread over a surface of about 2 sq. ft., or roc) tons to an acre.

Bibliography Information
Chisholm, Hugh, General Editor. Entry for 'Inch'. 1911 Encyclopedia Britanica. https://www.studylight.org/​encyclopedias/​eng/​bri/​i/inch.html. 1910.