bearing - An azimuth; a horizontal direction of a line or direction of travel with true north or true south as a reference.
bench mark - A material object, natural or man-made, with a known elevation or horizontal location. Bench marks can be used as reference points when traveling a route or in determining the elevation of nearby land features.
bitmap image - An image with 1 bit of color information per pixel, also known as a bitmapped image.
Bluetooth - A standard of radio technology that makes it possible to transmit signals over short distances between telephones, computers and other devices.
bosk - A small, wooded area.
bourn - A small stream.
bourne - Same as bourn.
BTGPS - Bluetooth GPS - See Bluetooth.
