Webster
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Webster’s Revised Unabridged Dictionary · 1913

Form

Form, v. t. (Elec.) To treat (plates) so as to bring them to fit condition for introduction into a storage battery, causing one plate to be composed more or less of spongy lead, and the other of lead peroxide. This was formerly done by repeated slow alternations of the charging current, but now the plates or grids are coated or filled, one with a paste of red lead and the other with litharge, introduced into the cell, and formed by a direct charging current.

Webster’s Revised Unabridged Dictionary, Noah Porter, editor (Springfield, Mass.: G. & C. Merriam, 1913). Public domain. Text as transcribed by MICRA, Inc., from Project Gutenberg. Changed for Deep Dive Bible: Greek, which our source spelled in Latin letters, set in Greek letters; entries of one spelling merged into one article; Greek words our source left out (shown as “?”), read from the 1898 printing, from the same plates (the Library of Congress’s copy), where the place could be found with certainty.