Also found in: Encyclopedia, Wikipedia.


 (kăt′ər-foil′, kăt′rə-)
1. A representation of a flower with four petals or a leaf with four leaflets, especially in heraldry.
2. Architecture Tracery or an ornament with four foils or lobes.

[Middle English quaterfoile : Old French quatre, four; see quatrain + Old French foil, leaf; see foil2.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈkætrəˌfɔɪl) or


1. (Botany) a leaf composed of four leaflets
2. (Architecture) architect a carved ornament having four foils arranged about a common centre, esp one used in tracery
[C15: from Old French, from quatre four + -foil leaflet; compare trefoil]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈkæt ərˌfɔɪl, ˈkæ trə-)

1. a leaf composed of four leaflets.
2. an architectural ornament composed of four lobes, separated by cusps, radiating from a common center.
[1375–1425; Middle English < Middle French quatre four + -foil (as in trefoil)]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
Mentioned in ?
References in periodicals archive ?
The upmarket spirits brand has taken up a new 'quatrefoil' logo, launched a new website and will roll out a brand new whisky next week.
Flintshire Council's planning committee rejected proposals by Quatrefoil Homes to develop land on Alltami Road at a meeting in November.
There are battlements and crockets as well as a variety of pointed and quatrefoil windows, together with features such as limestone obelisks.
And adding an extra dose of glitz to her glamorous cinched-waist ensemble, Kate topped off her look with the Queen's Quatrefoil bracelet, which once belonged to the monarch's mother.
Middleton also paid tribute to the Queen and Prince William's late mother, Princess Diana, that night&nbsp;as she wore Queen Elizabeth II's Quatrefoil bracelet that previously belonged to the monarch's mother.
To the reverse, an asymmetrical composition of solidly beaded trefoil, openwork quatrefoil and cinquefoil, with delicate star-like flowers on linear stems, within multiple zigzag and linear borders.
It is of a four-lobed, or quatrefoil, shape and has the inscription AVE MARIA (meaning 'Hail Mary') on the front face in a Lombardic script.
The applicant is Brian Bainnson of Quatrefoil, and the owner is Legacy Emanuel Hospital Health Center.
The 1886 Lebel introduced a thin, wicked quatrefoil bayonet that was justly feared by the Germans in World War I, who called it "that damned knitting needle." Not ones to let go of a good thing when they had it, the French military incorporated a shorter but similarly configured blade for the '36, though rather than being carried separately, it was cleverly concealed within a tube beneath the barrel.
tray Quatrefoil mirror tray, cotterllandco.com, PS99