wölbung (nach innen)

listen to the pronunciation of wölbung (nach innen)
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concavity
A concave structure or surface
{n} inside, hollowness of a round body
{i} state of being concave (curving inward like the inside of a bowl, hollow and curved)
a shape that curves or bends inward
The state of being concave
A concave surface, or the space bounded by it; the state of being concave
the property possessed by a concave shape
The maximum perpendicular distance from the face of a concave weld to a line joining the toes