Activator and Energizer

Activator noun - (biology) any agency bringing about activation; a molecule that increases the activity of an enzyme or a protein that increases the production of a gene product in DNA transcription.

Energizer and activator are semantically related. In some cases you can use "Energizer" instead a noun "Activator".

Energizer noun - A device that supplies electrical energy.

Activator and energizer are semantically related. You can use "Activator" instead a noun "Energizer".