The initial idioms of the letter P

primary color for pigments	primary colour
primary colour for light	primary colour for pigments
primary dentition	primary dysmenorrhea
primary election	primary feather
primary health care	primary quill
primary school	primary sex character
primary sex characteristic	primary sexual characteristic
primary solid solution	primary subtractive color for light
primary subtractive colour for light	primary syphilis
primary tooth	primary winding
primate	Primates
primateship	primatology
Primaxin	prime
prime factor	prime interest rate
prime meridian	Prime Minister