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nounthe interior curve of an archtype of:
Definition that contains intrados
- cusp point formed by two intersecting arcs (as from the intrados of a Gothic arch)
- trefoil arch a pointed arch having cusps in the intrados on either side of the apex
- camber arch an arch with a straight horizontal extrados and a slightly arched intrados
- flat arch an arch with mutually supporting voussoirs that has a straight horizontal extrados and intrados
- straight arch an arch with mutually supporting voussoirs that has a straight horizontal extrados and intrados