Definitions for "Klein bottle"
a closed surface with only one side; formed by passing one end of a tube through the side of the tube and joining it with the other end
a bottle that empties into itself and has only one side -- an impossible thing
a closed surface, which has no inside or outside, and resembles a bottle pulled into itself
a real Riemannian manifold wine accessory set ,it has a lip which separates wine accessory set the inside from wine accessory set the other pair of sides with wine accessory set a wine accessory set half-twist