Synonyms of the word

activator

• n. One who, or that which, activates.
• n. (chemistry) Something that activates a catalyst.
• n. (biology) Any chemical or agent which regulates one or more genes by increasing the rate of transcription.
• n. (biology) A type of effector that increases the rate of enzyme-mediated reactions.
• n. A type of dopant used in phosphors and scintillators.
• n. (mining) An agent that enables the flotation of a mineral or minerals.

matter

• n. Substance, material.
• n. A condition, subject or affair, especially one of concern.
• n. An approximate amount or extent.
• n. (obsolete) The essence; the pith; the embodiment.
• n. (obsolete) Inducing cause or reason, especially of anything disagreeable or distressing.
• n. (dated) Pus.
• v. (intransitive) To be important.
• v. (transitive, obsolete outside dialects) To care about, to mind; to find important.
• v. To form pus or matter, as an abscess; to maturate.

substance

• n. Physical matter; material.
• n. The essential part of anything; the most vital part.
• n. Substantiality; solidity; firmness.
• n. Material possessions; estate; property; resources.
• n. A form of matter that has constant chemical composition and characteristic properties.
• n. Drugs (illegal narcotics).
• n. (theology) Hypostasis.