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Definition of Precursor in English :

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Precursor

see synonyms of precursor

Noun

1. precursor

a substance from which another substance is formed (especially by a metabolic reaction)

2. forerunner, precursor

a person who goes before or announces the coming of another

3. forerunner, harbinger, herald, precursor, predecessor

something that precedes and indicates the approach of something or someone

WordNet Lexical Database for English. Princeton University. 2010.

Precursor

see synonyms of precursor
noun
1. 
a person or thing that precedes and shows or announces someone or something to come; harbinger
2. 
a predecessor or forerunner
3. 
a chemical substance that gives rise to another more important substance

Collins English Dictionary. Copyright © HarperCollins Publishers

Precursor

see synonyms of precursor
noun
1. 
a person or thing that goes before; forerunner; harbinger
2. 
a predecessor, as in office
3. 
a substance that precedes and is the source of another substance

Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.

Precursor

see synonyms of precursor
n.
1. One that precedes and indicates, suggests, or announces someone or something to come: Colonial opposition to unfair taxation by the British was a precursor of the Revolution.
2. One that precedes another; a forerunner or predecessor: The new principal's precursor was an eminent educator.
3. A biochemical substance, such as an intermediate compound in a chain of enzymatic reactions, from which a more stable or definitive product is formed: a precursor of insulin.

The American Heritage ® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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