tomorrow'snews today! and info...

Precursor | Definition of Precursor by Merriam-Webster
With its prefix pre-, meaning "before", a precursor is literally a "forerunner", and in fact forerunner first appeared as the translation of the Latin praecursor. But the two words function a little differently today. A forerunner may simply come before another thing, but a precursor generally paves the way for something.
Precursor | Definition of Precursor at Dictionary.com
a person, animal, or thing that goes before and indicates the approach of someone or something else; harbinger: The first robin is a precursor of spring. Chemistry, Biochemistry.
Precursor - definition of precursor by The Free Dictionary
precursor - a substance from which another substance is formed (especially by a metabolic reaction) biochemistry - the organic chemistry of compounds and processes occurring in organisms; the effort to understand biology within the context of chemistry
Precursor | definition of precursor by Medical dictionary
precursor (a) a substance that precedes and is involved in the synthesis of a compound, such as any of the intermediates in the synthesis of an AMINO ACID. (c) a molecule that is subjected to modification to provide an active molecule, such as the enzymic cleavage of TRYPSINOGEN to yield TRYPSIN (see ZYMOGEN).
PRECURSOR | meaning in the Cambridge English Dictionary
something that comes before another and may lead to it or influence its development : Opponents fear this would be a precursor to development of the entire canyon. (Definition of precursor from the Cambridge Academic Content Dictionary © Cambridge University Press) Examples of precursor
Precursor | Definition of Precursor by Lexico
‘In so doing, Coram created London's first art gallery, a precursor of the Royal Academy.’ ‘The pre-meal selection of chutneys is a precursor of the sharp flavours to come.’
precursor - Dictionary Definition : Vocabulary.com
precursor: 1 n something that precedes and indicates the approach of something or someone Synonyms: forerunner , harbinger , herald , predecessor Type of: indicant , indication something that serves to indicate or suggest n a person who goes before or announces the coming of another Synonyms: forerunner Types: predecessor one who precedes you ...
Precursor Synonyms, Precursor Antonyms | Thesaurus.com
Synonyms for precursor at Thesaurus.com with free online thesaurus, antonyms, and definitions. Find descriptive alternatives for precursor.