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• n  a substance from which another substance is formed (especially by a metabolic reaction)
• n  a person who goes before or announces the coming of another
• n  something that precedes and indicates the approach of something or someone

• Obesity may well be the precursor for diabetes, especially for people doing sedentary work.
• The fist bump's precursor, the low- and high-fives, originated in the 1950s, again mostly among athletes, who deemed handshakes too muted and formal for celebrating teamwork and .
• TODAY: Grown in the lab from pig cells and synthetic-polymer matrix TOMORROW: Regenerated from stem or precursor cells in the body.

• forerunner
• harbinger
• predecessor
• herald

News & Articles

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• Cheesy, porky stuffed jalapeños
  Spicy, cheesy and porky. You really can't go wrong with stuffed jalapeno peppers for Father's Day. They work perfectly as a precursor to a grilled entree or on a platter of other savory munchies while watching the game.
  June 12, 2013 - Eureka Times-Standard
• Cravings: Appetizers, diet advice hit the spot
  Hot appetizers Spicy, cheesy and porky. You really can't go wrong with stuffed jalapeno peppers for Father's Day. They work perfectly as a precursor to a grilled entree or on a platter of other savory munchies while watching the game.
  June 12, 2013 - The Topeka Capital-Journal
• We'd Still Be Using Phonographs Today If They Could Play Beer Bottles
  To promote its new record label, Beck's took inspiration from Thomas Edison's phonograph—a precursor to the record player that used wax cylinders instead of vinyl discs—to create what it's claiming is the world's first playable beer bottle . And since Guinness is still battling with U2 over music rights, they just might be right. Read more...        
  June 11, 2013 - Gizmodo

Quotes

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• David Stern in Chicago Tribune
  Obviously the lottery as a precursor to the draft is a time of great hope,commissioner David Stern said.
• Hillary Rodham Clinton in EasyBourse.com
  The US is "hopeful" that the move "is not a precursor of any actions that would up the ante, or threaten the stability and peace and security of the neighbors in the region," Clinton told reporters.
• Christos Sirros in International Herald Tribune
  Europe views such a relationship with Canada as a precursor to entering the US market,Sirros said.