shears (Noun) — Large scissors with strong blades.
shears (Noun) — (physics) a deformation of an object in which parallel planes remain parallel but are shifted in a direction parallel to themselves. ex. "the shear changed the rectangle into a parallelogram"
shears (Noun) — A large edge tool that cuts sheet metal by passing a blade through it.
shears (Verb) — Cut to the desired shape or thickness using shears. ex. "shear hedges"
shears (Verb) — Shave the wool from. ex. "shear sheep"
shears (Verb) — Cut or cut through with shears. ex. "shear the wool off the lamb"
shears (Verb) — (physics) become deformed by forces tending to produce a shearing strain.