Quarto

Origin

From Latin quartus ("fourth")

Full definition of quarto

Noun

1. (paper) A size of paper (7.5"-10" x 10"-12.5")(190-254 x 254-312 mm). Formed by folding and cutting one of several standard sizes of paper (15"-20" x 20"-25")(381-508 x 508-635 mm) twice to form 4 leaves (eight sides).
1. (UK) Quarto writing paper (10 inches x 8 inches)
2. (printing) A book size, corresponding to the paper size.

Synonyms

• (paper size) 4to, 4º
• (book size) Q