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Definitions of crossband:
noun: A layer of plywood with its grain at a right angle to the wood next to it.
noun: (biology) A band or stripe perpendicular to the body of an animal.
noun: A strip (of leather, metal, or some other material) going across a helmet or hat, or a helmet made with such a strip.
verb: (transitive) To arrange the layers of plywood so as to make their grains cross at right angles.
adjective: (telecommunications) Receiving on one frequency band and transmitting on another.
adjective: (textiles, of a twist) Left-handed or "S shaped", with individual fibers oriented down and to the right when the thread, yarn, or rope is vertical.