precursor /prē-kûrˈsər/

1. Something that exists or goes in advance of another
2. An indication of the approach of an event
3. A forerunner, herald or harbinger
4. A predecessor
5. A substance from which the one in question is derived or manufactured (chem)

precurˈsive or precurˈsory adjective

• power shovels
• power station
• power stations
• power steering
• power structure
• power structures
• power suit
• power suits
• power take-off
• power tea
• power teas
• powertrain
• powertrains
• power unit
• power units
• nankin
• nankins
• nanna
• nannas
• nannied
• nannies
• nannoplankton
• nannoplanktons
• nanny
• nannygai