| basal |
at, pertaining to, or comprising the bottom part or support. [3 definitions] |
| basal metabolism |
the minimum expense of energy that is necessary for life in a resting organism. |
| basalt |
a dense, fine-grained, dark-colored igneous rock created by lava flow that is rich in minerals containing magnesium and iron. The most common igneous rock on the Earth's surface due to its high abundance on the ocean floor. |
| bascule |
a counterweighted balance, esp. that used in bridges that are raised and lowered. |
| bascule bridge |
a bridge that is counterweighted for ease of raising and lowering. |
| base1 |
that which underlies or supports; foundation. [7 definitions] |
| base2 |
of little value or quality; inferior. [2 definitions] |
| baseball |
a game played with a bat and ball by two teams of nine players each, the object being to score runs by advancing runners around four bases. [2 definitions] |
| baseboard |
a narrow board lining the lowermost edge of an interior wall. [2 definitions] |
| baseborn |
of humble parentage. [3 definitions] |
| baseburner |
a stove or furnace that feeds to the base of the unit additional fuel, such as coal, as needed. |
| base hit |
in baseball, a hit that allows the batter to get on base safely, without an error or force-out being made. |
| baseless |
without basis in fact or reason; unfounded. |
| base line |
in baseball, the area within which a runner must stay while running from base to base. [3 definitions] |
| baseman |
in baseball, a player covering first, second, or third base. |
| basement |
the lowermost space in a building, usu. partly underground. |
| basementless |
combined form of basement. |
| basenji |
one of a breed of dogs originating in Africa, characterized by a smooth chestnut-brown coat and an inability to bark. |
| base on balls |
in baseball, an advance to first base taken by a batter to whom four balls have been pitched. (See walk.) |
| base runner |
in baseball, any member of the team at bat who is safely on base or is running toward a base. |
| bases1 |
pl. of basis. |