Definition of: harrow

(har′ō) noun
A farm implement, commonly a frame set with spikes or teeth, or disks, for leveling plowed ground, breaking clods, etc.
—v.t.
1. To draw a harrow over (a field, etc.).
2. To disturb the mind or feelings of painfully; distress.
—v.i.
3. To undergo harrowing. [ME harwe, prob. <Scand. Cf. ON herfi.]
—har′row·er noun