Treron curvirostra, a species of columbid bird, with nine subspecies to its name.

(archaic) A bill of health that states that there is infectious disease present in either a ship, or its port of departure.

A bill of health that states that there is no infectious disease present in a ship, or its port of departure. / (figuratively, by extension) A statement that indicates that there are no obvious problems.

(idiomatic, US politics) A bill consisting of many riders that attracts many, often unrelated, floor amendments, which may provide special benefits to various groups or interests.

plural of Christmas tree bill

plural of friend of Bill W. / (informal) The organization Alcoholics Anonymous.

(idiomatic, euphemistic) A recovering alcoholic, especially one who is a member of the organization Alcoholics Anonymous.

(law, Britain, Canada, Australia) A proposed law introduced by a member of a legislature who is not acting on behalf of the executive government.

plural of duck's-bill limpet

A limpet of the genus Scutus.