intrados

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intrados

semicircular arch (Precision Graphics)

n. Architecture, pl., -dos (-dōz'), or -dos·es (-dŏs'ĭz).
The inner curve of an arch.

[French : intra-, within (from Latin intrā-; see intra-) + dos, back (from Old French , from Latin dorsum).]

The inner curve or face of an arch or vault forming the concave underside.

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[De]

The interior curve of an arch.

Note: click on a word meaning below to see its connections and related words.

The noun has one meaning:

Meaning #1: the interior curve of an arch

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