emitter.

1. A device or source that gives off radiation, particles, light, or another signal.

2. The terminal of a bipolar transistor that supplies charge carriers into its base region.

Use it for

Words that belong together

• light emitter
• particle emitter

On the page

The emitter dimmed as the reserve power fell.

Usage notes

Primary category: sci-fi. Forms: Singular emitter; plural emitters. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings. Established modern English lexical item. No separate regional spelling or grammatical inflection entry. Commonness: moderately common.