emission

UK: ɪˈmɪʃ(ə)n | US: ɪˈmɪʃ(ə)n

Definition

  1. n. the act of releasing or discharging something (e.g., gas, light, or particles)

  2. n. something emitted, such as pollutants or radiation

Structure
e <out>miss <send>ion <noun suffix>
Etymology

The word "emission" originates from Latin emissio, derived from emittere ("to send out"). The morpheme e- (variant of ex-) means "out," and miss comes from mittere ("to send"). The suffix -ion forms nouns indicating an action or process. Thus, "emission" literally means "the act of sending out," reflecting its modern usage in contexts like light, sound, or pollutant discharge.

Examples

  1. The car's exhaust system reduces harmful emissions.

  2. Scientists measured the emission of gamma rays from the star.

  3. The new regulations aim to cut carbon emissions by 30%.

  4. The device detects infrared emissions from electronic equipment.

  5. Volcanic eruptions release large emissions of sulfur dioxide.