Definition of strut

• v. t. - To swell; to bulge out.
• v. t. - To walk with a lofty, proud gait, and erect head; to walk with affected dignity.
• n. - The act of strutting; a pompous step or walk.
• n. - In general, any piece of a frame which resists thrust or pressure in the direction of its own length. See Brace, and Illust. of Frame, and Roof.
• n. - Any part of a machine or structure, of which the principal function is to hold things apart; a brace subjected to compressive stress; -- the opposite of stay, and tie.
• v. t. - To hold apart. Cf. Strut, n., 3.
• a. - Protuberant.