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

• catarhine
• catarhines
• catarrh
• catarrhal
• catarrhine
• catarrhines
• catarrhous
• catarrhs
• catasta
• catastas
• catastases
• catastasis
• catastrophe
• catastrophes
• catastrophe theory
• catastrophic
• catastrophically
• catastrophism
• catastrophisms
• catastrophist
• catastrophists
• catatonia
• catatonias
• catatonic
• catatony