Boomerang

Boomerang, a missile of hard curved wood used by the Australian aborigines of 2½ ft. long; a deadly weapon, so constructed that, though thrown forward, it takes a whirling course upwards till it stops, when it returns with a swoop and falls in the rear of the thrower.

Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)

Boole * Boone, Daniel
Bonner, Edmund
Bonnet, Charles de
Bonnet-piece
Bonneval, Claude-Alexandre, Comte de
Bonnie Dundee
Bonpland, Aimé
Bonstetten, Charles Victor de
Bontemps, Roger
Bonze
Boole
Boomerang
Boone, Daniel
Boötes
Booth, Barton
Booth, John Wilkes
Booth, William
Boothia
Booton
Bopp, Franz
Bora, Katharina
Borda