bottlebrush

Noun

 * 1) A cylindrical brush on a thin shaft that is used to clean bottles.
 * 2) Any of various trees or shrubs of the myrtle family, especially of the genera  and, native to Australia and adjacent areas, having spikes of flowers with numerous conspicuous stamens.
 * 3) An uncommon cave formation resulting from a rise in water level such that a stalactite becomes immersed in water that is supersaturated with calcium carbonate, causing the stalactite to become coated with pool spar.
 * 1) An uncommon cave formation resulting from a rise in water level such that a stalactite becomes immersed in water that is supersaturated with calcium carbonate, causing the stalactite to become coated with pool spar.