Electrical switch with mercury and electrical contact enclosed in a bulb, which when the bulb is in a certain position, the mercury spans the contact to complete the circuit which allows electrical current to flow.
Mercury vapor lamp
A high-intensity discharge lamp that uses mercury as the primary light-producing element. Includes clear, phosphor coated, and self-ballasted lamps.
Merge
(1) To join together. To unite. To combine. (2) To lose identity by being absorbed.
Merged credit report
A credit report that obtains information from the Big Three credit-reporting companies: Equifax, Experian and Trans Union Corp.
Merger
Combination of two or more interests, such as businesses or investments, into one.
Merger of title
Forming two or more parcels of property under one title.
Meridian
A longitudinal reference line that traverses the earth in a north-south direction; all meridians circle the earth through the equator and converge at the north and south poles; used by surveyors in describing property under the Government Rectangular Survey Method.
Merlon
The solid part of a parapet (the masonry wall around the edge of a roof) as opposed to the open, evenly spaced square notches, called crenellations, in the wall.
Mesh
(1) Netlike, woven material of fiber or wire. (2) To become entangled. (3) To fit together closely, to interlock.