precursor


pre·cur·sor

noun \pri-ˈkər-sər, ˈprē-ˌ\

: something that comes before something else and that often leads to or influences its development

Full Definition of PRECURSOR

1
a :  one that precedes and indicates the approach of another
b :  predecessor
2
:  a substance, cell, or cellular component from which another substance, cell, or cellular component is formed
pre·cur·so·ry \-ˈkərs-rē, -ˈkər-sə-\ adjective

Examples of PRECURSOR

  1. <18th-century lyric poets like Robert Burns were precursors of the Romantics>
  2. <a precursor of the modern eggplant>

Origin of PRECURSOR

Middle English precursoure, from Latin praecursor, from praecurrere to run before, from prae- pre- + currere to run — more at current
First Known Use: 15th century

pre·cur·sor

noun \pri-ˈkər-sər, ˈprē-ˌ\   (Medical Dictionary)

Medical Definition of PRECURSOR

1
: one that precedes and indicates the onset of another <angina may be the precursor of a second infarction>
2
: a substance, cell, or cellular component from which another substance, cell, or cellular component is formed especially by natural processes

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