antifouling

adjective Nautical.

1. (of a coating, process, or the like) preventing the accumulation of barnacles, algae, etc., on underwater surfaces: The makers now use an antifouling chemical on all marine hulls.

adjective

1. (of a paint or other coating) inhibiting the growth of barnacles and other marine organisms on a ship’s bottom

noun

2. an antifouling paint or other coating