from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Chiefly British A sheet of writing or printing paper measuring approximately 13 by 16 inches.
- n. A fool's cap.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Alternative form of fool's cap.
- n. Writing paper sheets measuring 13.25 x 16.5 inches
- n. Such a sheet folded or cut in half, thus approximately 8 x 13.25 inches.
- n. Printing paper measuring 13.5 inches x 17 inches.
from the GNU version of the Collaborative International Dictionary of English
- n. a cap or hood to which bells were usually attached, formerly worn by professional jesters.
- n. A writing paper made in sheets, ordinarily 16 x 13 inches, and folded so as to make a page 13 x 8 inches. See paper.
from The Century Dictionary and Cyclopedia
- n. See fool's cap, under fool.
- n. A writing-paper, usually folded, varying in size from 12 × 15 to 12½ × 16 inches: so called from its former watermark, the outline of a fool's head and cap, for which other devices are now substituted.
- n. A bivalve mollusk, Isocardia cor, better known as heart-shell.
- Of the size known as foolscap.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a cone-shaped paper hat formerly placed on the head of slow or lazy pupils
- n. a size of paper used especially in Britain
From the watermark of a fool's cap with bells originally used for this paper.(American Heritage® Dictionary of the English Language, Fourth Edition)
Probably from a watermark of a fool's cap. (Wiktionary)