antifouling (antifouling)

[ vent the formation or accumulation of extraneous matter, as barnacles, seaweed, etc., on the immersed portion of ships, or fitted for removing such formations, or the scales from the interior of steam-boilers, powder from the bores of guns, etc. antifriction (an-ti-frik's hon), a.and n. [ great, with certain metallic or mineral substances, as plumbago, sulphur, talc, steatite, etc. - Antifriction metals, alloys which offer little frictional resistance to bodies sliding over them, and which are used in machinery for bearings. They are principally compounds of copper, antimony, and tin; zinc or lead, or both, are sometimes added, and le frequently, or in smaller quantities, various other substances. II. n. Anything that prevents friction; a lubricant.