Rectifiers

Part of speech: noun

Definitions

1. Electronics that change alternating electrical current into direct current for various applications
2. Tools utilized to modify an AC signal into a DC signal to optimize performance in circuits
3. Components that transform alternating current into direct current for use in electrical systems

Etymology: The plural here follows the regular pattern for "rectifier," so the real story belongs to the word's base. "Rectifier" is built from "rectify" plus the agent suffix "-er," and the suffix traces back through Middle English and Old French to Latin "-arius," a label for a person or thing connected with a task. Latin "rectus" (straight, right) sits behind the base, which is why the core sense of "rectify" is to set something right or straight. The electrical sense is a later extension. "Rectify" was long used for correcting things in general, such as purifying a liquid by distillation or correcting a mistake, and the device meaning arose when engineers needed a name for something that set a current right, turning alternating flow into one direction. The word therefore describes a corrective function, not a material or invention, and its ancestry is a moral and physical idea of straightening.