springing

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spring·ing

 (sprĭng′ĭng)
n.
Either of the points at which an arch begins to rise from its supports.

springing

(ˈsprɪŋɪŋ)
n
(Architecture) the level where an arch or vault rises from a support. Also called: spring, springing line or springing point

spring•ing

(ˈsprɪŋ ɪŋ)

n.
1. the mechanical springs with which any of various devices are equipped.
[1250–1300]
Translations
Abfederung
References in periodicals archive ?
A critical part is the end of the arch, known as the abutment or springing point which takes the load and spreads it into the wall.
In Gothic architecture the re-aligning of forces travelling down the ribs and spandrels of the vault is achieved by flying buttresses or a pinnacle weight above the springing point of the arch.
The arch of the bridge rises 180ft from its springing point and the roadway is 93ft above high water level.