PHONOGRAPH n.
speech, etc. It consists of a rotating cylinder or disk covered with some material easily indented, as tinfoil, wax, paraffin, etc., above which is a thin plate carrying a stylus. As the plate vibrates under the influence of a sound, the stylus makes minute indentations or undulations in the soft material, and these, w…
STAMP v.
To cut out, bend, or indent, as paper, sheet metal, etc., into various forms, by a blow or suddenly applied pressure with a stamp or die, etc.; to mint; to coin.