elephant folio

noun

, Printing.

1. a very large folio.
2. an American book size with a height measurement between 24 and 25 inches (61 and 63.5 centimeters).

Word History and Origins

Origin of elephant folio¹

First recorded in 1875–80

Example Sentences

The book was published in New York in four volumes (elephant folio) in 1830-39.

From Project Gutenberg