arc-boutant

arc-bou·tant  (ärb-tä)

n. pl. arcs-bou·tants (ärb-tä)

See flying buttress.

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[French : arc, arch (from Old French; see arc) + boutant, present participle of bouter, to thrust (from Old French; see butt¹).]

Thesaurus

Noun

1.

arc-boutant - a buttress that stands apart from the main structure and connected to it by an arch flying buttress buttress, buttressing - a support usually of stone or brick; supports the wall of a building