
1) Alfalfa 2) Clover 3) Lucerne 4) Medic 5) Medick 6) Shamrock
Found on
https://www.crosswordclues.com/clue/trefoil

1) Architectural leaf 2) Clover 3) Clover plant 4) French word used in English 5) Girl scout emblem 6) Girl scout symbol 7) Girl Scouts emblem 8) Girl Scouts symbol 9) Herb 10) Herbaceous plant 11) Medic 12) Medick 13) Three-lobed
Found on
https://www.crosswordclues.com/clue/trefoil

three-lobed architectural ornament
Found on
http://phrontistery.info/t.html

• (n.) An ornamental foliation consisting of three divisions, or foils. • (n.) Any plant of the genus Trifolium, which includes the white clover, red clover, etc.; -- less properly, applied also to the nonesuch, or black medic. See Clover, and Medic. • (n.) A charge representing the clover leaf.
Found on
http://thinkexist.com/dictionary/meaning/trefoil/

three-lobed or three-leaved motif
Found on
http://www.castles-of-britain.com/glossary.htm

Three-lobed.
Found on
http://www.castlesontheweb.com/glossary.html

Three-lobed.
Found on
http://www.encyclo.co.uk/local/20018

literally '3 leaves': a three lobed shape formed by cusps (q.v.)
Found on
http://www.encyclo.co.uk/local/20559

A three lobed shape.
Found on
http://www.encyclo.co.uk/local/20941

1. <botany> Any plant of the genus Trifolium, which includes the white clover, red clover, etc.; less properly, applied also to the nonesuch, or black medic. See Clover, and Medic. ... 2. An ornamental foliation consisting of three divisions, or foils. ... 3. A charge representing the clover leaf. ... Origin: L. Tres three + E. Foil leaf; cf....
Found on
http://www.encyclo.co.uk/local/20973

Three-lobed opening or arch.
Found on
http://www.encyclo.co.uk/local/21096

three-lobed
Found on
http://www.encyclo.co.uk/local/22129

A three-lobed decorative form used in Gothic architecture
Found on
http://www.encyclo.co.uk/local/22195

A three lobed shape.
Found on
http://www.encyclo.co.uk/local/22200

Clover-leaved pattern
Found on
http://www.encyclo.co.uk/local/22203

is a refractory structure in the preheating zone of some rotary kilns, dividing the kiln into three channels, to improve heat transfer between the hot gases and the limestone.
Found on
http://www.encyclo.co.uk/visitor-contributions.php

An ornamental form which has three lobes or foils.
Found on
http://www.pitt.edu/~medart/menuglossary/INDEX.HTM

In architecture a trefoil is an ornamental foliation consisting of three divisions, or foils used in Gothic architecture in the heads of window-lights, tracery, panellings, etc, in which the spaces between the cusps represent the form of a three-lobed leaf.
Found on
http://www.probertencyclopaedia.com/browse/TT.HTM

In heraldry the term trefoil describes a charge representing the clover leaf.
Found on
http://www.probertencyclopaedia.com/browse/UT.HTM

An ornament, or symbol, or architectural form which has three lobes or foils. Also called trilobed. If it is the plan of a building then the term triconch can also be used. Also see: triconch.
Found on
http://www.virtualani.org/glossary/index.htm

three-lobed
Found on
https://www.encyclo.co.uk/local/20402

A cusped decoration of three lobes.
Found on
https://www.encyclo.co.uk/local/20434
noun an architectural ornament in the form of three arcs arranged in a circle
Found on
https://www.encyclo.co.uk/local/20974

A three-leafed shape.
Found on
https://www.encyclo.co.uk/local/21090

Any of several clover plants of a group belonging to the pea family, the leaves of which are divided into three leaflets. The name is also used for other plants with leaves divided into three lobes. (Genus
Trifolium, family Leguminosae.) Bird's-foot trefoil
Lotus corniculatus, also belonging to the pea ...
Found on
https://www.encyclo.co.uk/local/21221
No exact match found.