\Chron"o*gram\, n. [Gr. ? time + ? writing,
character: cf. F. chronogramme.]
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. The record or inscription made by a chronograph.