Fungicide made of a combination of copper sulfate, lime and water.
Border
An edge or dividing line.
Bore
To make a hole by drilling.
Bored deadlock
Lock with a bolt, which slides into the receptacle in the door jamb when the key is turned.
Boring bar
Holder for the boring bit used to bore holes in metal. The chuck of the lathe grabs on to the shaft, which holds the bar. The boring bar is placed at a right angle to the arbor and, when the arbor is rotated, the bit in the boring bar cuts the circle into the metal. The boring bar in the arbor is slid to change the space between the cutting tool and the arbor, which adjusts the size of the circle.
Boring jig
A jig maintains the needed placement between a drill and the material so that the hole is properly aligned.
Boring log
Record of the information gained about the soil, which was removed from an excavation site.
Boring test
Soil analysis taken by boring holes into the ground to remove samples.
Boron
The chemical element commonly used as the dopant in solar photovoltaic device or cell material.
Borough
A section of a city having authority over local matters.
