1 definition
for Springing line of an arch
From The Collaborative International Dictionary of English v.0.48 :
Springing \Spring"ing\, n.
1. The act or process of one who, or that which, springs.
[1913 Webster]
2. Growth; increase; also, that which springs up; a shoot; a
plant.
[1913 Webster]
Thou blessest the springing thereof. --Ps. lxv. 10.
[1913 Webster]
Springing line of an arch (Arch.), the horizontal line
drawn through the junction of the vertical face of the
impost with the curve of the intrados; -- called also
spring of an arch.
[1913 Webster]
