Stimulator

Part of speech: noun

Definitions

1. An entity that catalyzes reactions in living organisms or systems
2. Something that provokes a response or increases activity in a system or organism
3. An object or factor that prompts or encourages heightened function or alertness

Etymology: The word comes from Latin "stimulus," a goad used to prod oxen, which later came to mean any spur or incitement. From it the Latin agent noun "stimulātor," meaning one who stirs something up, was formed with the suffix "-tor," which marks a person or thing that performs an action. English borrowed "stimulātor" directly from Latin, so the English term keeps the sense of something that spurs another thing into action. The root traces back to a Proto-Indo-European form that the Latin word inherited, so the physical image of a pointed rod driving an animal forward sits behind the modern, abstract sense of a factor that sharpens attention or energy.

Synonyms: activator, impetus, catalyst, encourager, motivator

Antonyms: inhibitor, detractor, suppressor, discourager