Definition of harrows:
(n) :
A device consisting of a heavy framework having several disks or teeth in a row, which is dragged across ploughed land to smooth or break up the soil, to remove weeds or cover seeds; a harrow plow.
(v) :
(transitive) To drag a harrow over; to break up with a harrow.
(v) :
(transitive) To traumatize or disturb; to torment, distress or vex.
(v) :
(transitive) To break or tear, as if with a harrow; to wound; to lacerate.
(n) :
(military) An obstacle formed by turning an ordinary harrow upside down, the frame being buried.
(n) :
A town in northwestern Greater London, England, historically in the county of Middlesex.