Akademik

three-centered arch
noun
a round arch whose inner curve is drawn with circles having three centers
Syn: ↑basket-handle arch
Hypernyms: ↑round arch

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\\ˈ ̷ ̷ˌ ̷ ̷ ̷ ̷-\ noun
: an arch whose intrados curve is described from three centers

Useful english dictionary. 2012.