Definition of "chronogram" []

• The record produced by a chronograph. (noun)
• An inscribed phrase in which certain letters can be read as Roman numerals indicating a specific date. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The first of these lines is a chronogram, that is, it contains a date."
• "By FranCIs GoLDsMIth. "has no date on the title-page, the real date of 1652 being supplied by the chronogram, which is a better one than most of those quoted in" N. & Q., "inasmuch as all the numerical letters are employed, and it is consequently not dependent on the typography."
• ""chronogram" indicating the year 1634 thus: -- sInt DoMUs hUjUs pII reges nUtrItII regInae nUtrICes pIae."