cultivator cultivator /ˈkʌlɪvəˌteɪtə/

noun

1. A farm implement used to break up the surface of the soil (for aeration and weed control and conservation of moisture)  ( cultivator , tiller )
   a farm implement used to break up the surface of the soil (for aeration and weed control and conservation of moisture)
    The farmer used a cultivator to prepare the soil for planting
   The farmer used a cultivator to prepare the soil for planting
   
   
2. Someone concerned with the science, art or business of cultivating the soil  ( agriculturalist , agriculturist , cultivator , grower , raiser )
   someone concerned with the science, art or business of cultivating the soil