(physics) A wave that changes the medium through which it travels to change its shape but not its volume or density.

(mechanics) The point where a shear force can act without producing any twist in the section. In general not the centroid, but a point through which a force transverse to the axis of a beam section can act and not cause any twisting of the beam section.

plural of shear stress

(astronomy) The effect of differential rotation speeds in the rings of Saturn

The resistance to forces that cause or tend to cause two contiguous parts of a body to slide relative to each other in a direction parallel to their contrast.

(nautical) A form of derrick, consisting of three poles and a block and tackle, used to hoist and lower heavy weights, especially the masts of sailing ships.

(architecture) Alternative form of shearwall

plural of shear-cake

(mining) A counterweighted refractory slab used as a gate or door to a small furnace or oven.

A steel suitable for shears, scythes, and other cutting instruments, prepared from fagots of blistered steel by repeated heating, rolling, and tilting, to increase its malleability and fineness of texture.