pasturer

noun

1. grass or other growing plants used as food by grazing animals
2. 1. ground suitable for grazing
   2. a field, plot, etc. set aside for this

transitive verb pastured, pasturing

1. to put (cattle, etc.) out to graze in a pasture
2. to graze or feed on (grass, etc.)
3. to provide with pasture: said of land

intransitive verb