Interferendo

Interferendo is a Portuguese term formed from the verb interferir. In common use it functions mainly as the present participle meaning “the one who is interfering.” As a noun, interferendo is relatively uncommon; more typical equivalents in Portuguese are interferente (one who interferes) and interveniente (one who intervenes).

In everyday language, interferendo may describe a person who meddles in others’ affairs or who participates in a situation in a disruptive way. The nuance is often contextual and can carry a negative connotation, but the word itself is not restricted to a single domain.

In scientific contexts, especially in physics, the phenomenon is called interference. The entities that participate in creating or experiencing interference are usually described as interferentes (interfering or interfering waves, beams, or signals). The specific noun interferente is standard for the object or wave that contributes to the interference pattern; interferendo is not typically used as a technical term in Portuguese physics texts.

In legal and procedural language, the concepts more commonly expressed are interveniente or interferente depending on jurisdiction. These terms denote a party that participates in a dispute or process, often with a recognized right to present arguments or evidence.

Etymology: interferindo derives from interferir, with prefix inter- meaning between and a root related to “strike,” reflecting the historical sense of crossing or impacting another action.

See also: Interferência, Interferente, Interveniente, Interferometria.