A person who, or thing that, interferes.

plural of interferer

(intransitive) To get involved or involve oneself, causing disturbance. / (intransitive, physics) (of waves) To be correlated with each other when overlapped or superposed.

Third-person singular simple present indicative form of interfere

A person applying for a patent that conflicts with an earlier one.

plural of interferant

The act of interfering with something, or something that interferes. / (sports) The illegal obstruction of an opponent in some ball games.

(chemistry) Any substance whose presence interferes with an analytical procedure and generates incorrect results

plural of interferent

plural of interference