Definition of extrados in English:

extrados

Syllabification: ex·tra·dos
Pronunciation: /ˈekstrəˌdäs
 
/

noun (plural same or extradoses)

Architecture
  • The upper or outer curve of an arch. Often contrasted with intrados.
    More example sentences
    • The outer boundaries of a voussoir are the extrados.
    • It is quite natural to obtain greater values at the intrados and smaller ones at the extrados since the inside fiber of the pipe is under compression while at the same time the outside fiber is under tension, during bending.

Origin

late 18th century: from French, from Latin extra 'outside' + French dos 'back' (from Latin dorsum).

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Pronunciation: grəʊˈtɛskəri
noun
grotesque quality or grotesque things collectively