Hypernym

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

Domain_of_synset_-_TOPIC

chemistry 1

noun

the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions

accelerator 3

noundomain: substance

Princeton WordNet [ver.3.1]

English

Definition

(chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected

Synonyms

catalyst 1
(chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected

Hyponym

biocatalyst 1

noun

a biochemical catalyst such as an enzyme

enzyme 1

noun

any of several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions

platinum black 1

noun

a fine black powder of platinum; used as a catalyst in chemical reactions

vulcanization accelerator 1

noun

an accelerator that lowers the activation energy of vulcanization reaction.

Member_of_this_domain_-_TOPIC

chemistry 1

noun

the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions