plural of crude birth rate

plural of early bird special

plural of full bird colonel

(vulgar, derogatory) A term of abuse; a debauchee

alternative form of birdfeeder

plural of bird feeder

A form of hypersensitivity pneumonitis caused by exposure to bird droppings or feathers.

An astrological diagram of the position of the planets and stars at the moment of someone's birth; a horoscope.

plural of birth chart

(mathematics) A rack in which the two operations are invertible.