Batten (n .) A strip of sawed stuff, or a scantling; as, (a) pl. (Com. & Arch.) Sawed timbers about 7 by 2 1/2 inches and not less than 6 feet long. Brande & C. (b) (Naut.) A strip of wood used in fastening the edges of a tarpaulin to the deck, also around masts to prevent chafing. (c) A long, thin strip used to strengthen a part, to cover a crack, etc.