(baseball) A form of interference in which a catcher intentionally or inadvertently physically hinders a batter from the opportunity to legally swing at a pitched ball, and for which the catcher is charged an error.

(US) To handle problems or remove obstacles for another person, especially for a person in authority / past participle of run interference

(baseball) An instance of a hitter being awarded first bases, due to the catcher touching the batter's bat during his or her time at bat.

plural of interference microscope

plural of interference filter

(telecommunications) Interference resulting from noise or unwanted signals entering a device by conductive coupling, i.e., by direct coupling.

plural of interference maximum

plural of interference maximum

(physics) A spot in an interference pattern where the interfering waves are maximally constructive.

(physics) A series of light and dark bands that map out the way in which the phase difference between two waves varies in space.