D defs.my
Entry 2 senses Webster, 1913

Chronogram

· Chron·o·gram · IPA
01 n. An inscription in which certain numeral letters, made to appear specially conspicuous, on being added together, express a particular date o…
  1. 1.
    An inscription in which certain numeral letters, made to appear specially conspicuous, on being added together, express a particular date or epoch, as in the motto of a medal struck by Gustavus Adolphus in 1632: ChrIstVs DVX; ergo trIVMphVs. - the capitals of which give, when added as numerals, the sum 1632.
  2. 2.
    The record or inscription made by a chronograph.