activator

Thing that starts

An activator is something that makes something else active or functional.

In biology, an activator is a molecule that triggers a gene or enzyme to work.

In chemistry, it's a substance that speeds up a reaction or makes another substance more reactive.

The term extends to products that "activate" other products: Mix the activator with the resin before applying.

chemical

catalyst

Agent enabling change

substrate · compound · synthesis · conversion · kinetics · mechanism · oxidation · polymerization · hardener · initiator

biochemical

enzyme

Protein that hastens reactions

phosphorylation · catalyst · metabolism · protein · receptor · ligand · pathway · regulation · inhibitor · promoter

mechanical

trigger

What initiates action

  • switchCircuit-breaking toggle device
  • leverPivoting bar for lifting
  • buttonDisc through a hole

mechanism · release · sensor · pedal · valve · control · actuator · remote · signal · timer

motivational

inspirer

One who stirs others

driver · energizer · encourager · stimulator · galvanizer · empowerer · coach · cheerleader · influencer · mover

Categories
Opposites
functional effect

activatorinhibitor

Agent that slows reactions

suppressor · blocker · repressor · deactivator · antagonist

state change direction

activatordeactivator

Thing that turns off

disabler · neutralizer · terminator

Phrases
Family

activate, activated, activation, activates, activating, reactivate, inactivate, activators, activations

Familiarity
Top 200,000
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