extrados

名词 n.
中文释义

英文释义

名词 n.
  1. The outer or upper curve of an arch.
    — The two lower rows of tubes at each end pier were then drilled through to the extrados of the brickwork to act as weep holes and assist in the drainage from the backs of the arches.

词形变化

extradoses plural extrados plural

词源

From French extradossé (“outer curve”) from Latin extra (“outside”) + dos (“back”) (from Latin dorsum).
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