phosphate rock
noun
Rock containing a substantial amount of calcium phosphate (usually in the form of apatite).
Origin
Mid 19th century.
- abstertion
- abstinence
- abstinence program
- abstinence programme
- abstinence symptom
- abstinence syndrome
- abstinency
- abstinent
- abstinential
- abstinently
- abstract
- abstractable
- abstract algebra
- abstract art
- abstract-concrete
- abstract/concrete
- abstracted
- abstractedly
- abstractedness
- abstract expressionism
- abstract expressionist
- abstractible
- abstract impressionism
- rubelliform
- rubellite