diameter (at) breast height

(DBH, dbh) the diameter of the stem of a tree measured at breast height (4.5 ft or 1.37 m) from the ground —note 1. on sloping ground the measure is taken from the uphill side —note 2. DBH usually implies diameter outside bark (DOB) but can be measured as inside bark (DIB) —synonym diameter breast high —see diameter inside bark, diameter outside bark This definition last updated 10/25/2008