pen.den.tive

n.Architecture （名詞）【建筑學】
A triangular section of vaulting between the rim of a dome and each adjacent pair of the arches that support it.
弧三角拱，方墻四角圓穹頂支承拱：拱形結(jié)構(gòu)的三角形部分，位于頂穹邊緣和每對支撐此拱形結(jié)構(gòu)的相鄰圓拱之間

來源：
French pendentif
法語 pendentif
from Latin pendôns pendent- [hanging] [present participle of] pendôre [to hang] * see (s)pen-
源自 拉丁語 pendôns pendent- [懸掛的] [] pendôre的現(xiàn)在分詞 [懸掛] *參見 (s)pen-