different between stimulant vs catalyst

English

Noun

stimulant (plural stimulants)

1. (pharmacology) A substance that acts to increase physiological or nervous activity in the body.
2. Something that promotes activity, interest, or enthusiasm.

Synonyms

• psychostimulant

Derived terms

Translations

Adjective

stimulant (not comparable)

1. (pharmacology) Acting as a stimulant.

French

Verb

stimulant

1. present participle of stimuler

Noun

stimulant m (plural stimulants)

1. Stimulant

Adjective

stimulant (feminine singular stimulante, masculine plural stimulants, feminine plural stimulantes)

1. stimulating

Further reading

• “stimulant” in Trésor de la langue française informatisé (The Digitized Treasury of the French Language).

Latin

Verb

stimulant

1. third-person plural present active indicative of stimul?

Romanian

Etymology

From French stimulant.

Adjective

stimulant m or n (feminine singular stimulant?, masculine plural stimulan?i, feminine and neuter plural stimulante)

1. stimulating

Declension

Related terms

• stimula

English

Etymology

From catalysis +? -ist.

Pronunciation

• (UK) IPA^(key): /?kæt.?l.?st/
• (US) IPA^(key): /?kæt.?.l?st/

Noun

catalyst (plural catalysts)

1. (chemistry) A substance that increases the rate of a chemical reaction without being consumed in the process.
   • 1988, Lubert Stryer Biochemistry, 3rd edition, page 177

     Enzymes, the catalysts of biological systems, are remarkable molecular devices that determine the pattern of chemical transformations.

2. Someone or something that encourages progress or change.

   Economic development and integration are working as a catalyst for peace.

   • 2006, The Freedom Writers, with Erin Gruwell, The Freedom Writers Diary: How a Teacher and 150 Teens Used Writing to Change Themselves and the World Around Them, Diary 74

     Rosa Parks was a true catalyst for change and she was only one person. Hearing about Rosa Parks and her protest showed me that there is hope for me and all the students in Ms. G's classes to truly be catalysts for change.
3. (literature) An inciting incident that sets the successive conflict into motion.
4. (automotive) A catalytic converter.

Synonyms

• (Someone or something that encourages progress or change): stimulus, straw that stirs the drink

Antonyms

• (something that encourages change): inhibitor
• (something that enhances or accelerates): dampener

Derived terms

• catalyse, catalyze
• catalysis
• catalytic

Translations

See also

• enzyme