An electronic module consisting of chips and other electronic components mounted on a flat, rigid substrate on which conductive paths are laid between the components. A personal computer contains a main board, called the motherboard, which usually has the microprocessor on it and slots into which other, smaller boards, called cards or adapters, can be plugged to expand the functionality of the main system, allowing connections to monitors, disk drives, or a network. See also adapter, card (definition 1), motherboard.

ETYM French aborder. Related to Abord.
1. To get on board of (trains, buses, ships, aircraft, etc.); SYN. get on.
2. To live and take one's meals (in a certain place); SYN. room.
3. To lodge and take meals (at).
4. To provide food and lodging (for).

ETYM Old Eng. bord, AS. bord board, shipboard; akin to bred plank, Icel. borth board, side of a ship, Goth. fôtu-baurd footstool, Dutch bord board, German brett, bort. Related to def. 8.
(Homonym: bored).
1. A flat piece of material (usually wood) designed for a special purpose.
2. A stout length of sawn timber; made in a wide variety of sizes and used for many purposes; SYN. plank.
3. A flat portable surface (usually rectangular) designed for board games; SYN. gameboard.
4. A committee having supervisory powers.
5. Food or meals in general; SYN. table.
In NGO work, a group of officials or persons with standing in the commu-nity or field who are chosen to govern and assist with the development of an organization.