shear -
a large edge tool that cuts sheet metal by passing a blade through it
edge tool any cutting tool with a sharp cutting edge (as a chisel or knife or plane or gouge)
shear -
(physics) a deformation of an object in which parallel planes remain parallel but are shifted in a direction parallel to themselves; "the shear changed the quadrilateral into a parallelogram"
deformation alteration in the shape or dimensions of an object as a result of the application of stress to it
shear -
cut or cut through with shears; "shear the wool off the lamb"
cut grow through the gums; "The new tooth is cutting"
shear -
become deformed by forces tending to produce a shearing strain
change undergo a change; become different in essence; losing one's or its original nature; "She changed completely as she grew older"; "The weather changed last night"
natural philosophy,
physics the science of matter and energy and their interactions; "his favorite subject was physics"