Wordiyo
Vocabulary
Learn
My WordsPricing
Wordiyo

Build your English vocabulary systematically through word roots and etymology.

Explore

  • Vocabulary
  • Roots
  • My Words

Learn

  • Guides
  • Read

Company

  • About Us
  • Pricing
  • Terms of Service
  • Privacy Policy

© 2026 Wordiyo.

  1. Home
  2. /act
  3. /activator

activator

🇬🇧 UK🇺🇸 US
A2

Definitions

n.

A person, substance, or device that activates or triggers something.

激活剂;催化剂;触发者

🧩 Root Breakdown

Root-derived
actdo, act, drive
+
ivconnector
+
ateto make, having
+
orone who does, agent
=activator

Example Sentences

  • 1.

    The enzyme serves as an activator.

← Back to act