Crazy; insane; loony; demented; batty.

The blades of a propeller.

Symbolise good fortune. Chinese mythology believe that evil energies are deterred by a symbol or picture of a bat, or five bats, therefore bringing the occupant protection and luck.

Awful is the fate of the unfortunate dreamer of this ugly animal. Sorrows and calamities from hosts of evil work against you. Death of parents and friends, loss of limbs or sight, may follow after a dream of these ghoulish monsters. A white bat is almost a sure sign of death. Often the death of a child follows this dream.

informal or slang terms for mentally irregular; "it used to drive my husband balmy"

are flat discs made out of plaster or wood which is affixed to the wheel head with clay or pins. Bats are used to throw pieces on that would be difficult to lift off the wheel head.

Bermuda Atlantic Time-series Study

Biological Analysis and Taxonomic Support

Batch Authorization Transaction System. A system designed to allow certain merchants ' for example, mail order merchants ' to batch process authorizations on their own time schedules.

Bats is a musical written in 1983 by two Australians named Ian Dorricott and Simon Denver.