Bucket

1buck;et pronunciation: function: noun etymology: middle english, from anglo-french buket, from old english būc pitcher, belly; akin to old high german būh bellydate: 13th century 1 : a typically cylindrical vessel for catching, holding, or carrying liquids or solids2 : something resembling a bucket: as a : the scoop of an excavating machine b : one of the receptacles on the rim of a waterwheel c : one of the cups of an endless-belt conveyor d : one of the vanes of a turbine rotor 3 : bucketful4 : bucket seat5 : basket 3b

Denitrifications

de;ni;tri;fi;ca;tion pronunciation: function: noun date: 1883 : the loss or removal of nitrogen or nitrogen compounds; specifically : reduction of nitrates or nitrites commonly by bacteria (as in soil) that usually results in the escape of nitrogen into the air— de;ni;tri;fi;er noun — de;ni;tri;fy transitive verb