What does "shears" mean?

Shears: Anything in the form of shears. Specifically: (a) A pair of wings. [Obs.] Spenser. (b) An apparatus for raising heavy weights, and especially for stepping and unstepping the lower masts of ships. It consists of two or more spars or pieces of timber, fastened together near the top, steadied by a guy or guys, and furnished with the necessary tackle. [Written also sheers.]

Additional senses

  1. 2.(Mach.) The bedpiece of a machine tool, upon which a table or slide rest is secured; as, the shears of a lathe or planer. See Illust. under Lathe. Rotary shears. See under Rotary.

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