SHEAR n.
A strain, or change of shape, of an elastic body, consisting of an extension in one direction, an equal compression in a perpendicular direction, with an unchanged magnitude in the third direction. Shear blade, one of the blades of shears or a shearing machine. -- Shear hulk. See under Hulk. -- Shear steel, a steel s…
STAY n.
Strictly, a part in tension to hold the parts together, or stiffen them. Stay bolt (Mech.), a bolt or short rod, connecting opposite plates, so as to prevent them from being bulged out when acted upon by a pressure which tends to force them apart, as in the leg of a steam boiler. -- Stay busk, a stiff piece of wood, s…
STOLON n.
An extension of the integument of the body, or of the body wall, from which buds are developed, giving rise to new zooids, and thus forming a compound animal in which the zooids usually remain united by the stolons. Such stolons are often present in Anthozoa, Hydroidea, Bryozoa, and social ascidians. See Illust. under…