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Noun: trefoil arch
  1. A pointed arch having cusps in the intrados on either side of the apex

Derived forms: trefoil arches

Type of: pointed arch

Encyclopedia: Trefoil arch

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tree-living
treen
treenail
treepie
tree-shaped
treetop
tree-worship
tref
trefa
trefoil
trefoil arch
treif
treillage
trek
trekker
Trekkie
trekking
trellis
Trema
Trematoda
trematode