The phrase "a primary contribution to" is correct and usable in written English.
It can be used when discussing the main or significant input or impact that something has on a particular subject or area.
Example: "The research provided a primary contribution to our understanding of climate change and its effects on biodiversity."
Alternatives: "a key contribution to" or "a major input to".
A primary contribution to this problem is the fact that too often science lectures are overly formal, and they employ a notation — namely the language of math — which ostensibly is transparent to only an elite few.
And the more I think of Richard Katz, Jonathan Franzen's rock musician in "Freedom," the more I think he is a culturally essential character and a primary contribution to the genre).
The pronounced loss of mitochondria in the pro-apoptotic prion-infected cells might indicate a primary contribution to cell death as part of the apoptotic response.
SS, VM and RB coordinated the trial and made a primary contribution to its development, rationale, design, and undertaking, analysis of data, and revised the manuscript for important intellectual content.
Of course, a company's primary contribution to development will always be through the taxes it pays and the jobs it creates.
SIR - The primary contribution to society by a company cannot be its profits and salaries, for money is but a placeholder of value (Special report, January 19th).
Baseball's Hall of Fame has people in it whose primary contribution to the game was the particular way they called a home run from the broadcasting booth.
Conveniently for the state, his primary contribution to China's history was the merciless crushing of violent dissent.
The culmination of his research and his primary contribution to zoology was his Behaviour of the Lower Organisms (1906).
The Atlantis's primary task was to deliver the Columbus science module, a $2 billion laboratory that will double the station's research capacity and is Europe's primary contribution to the international project.
It was to be my primary contribution to CrunchGear's ultra-amazing Holiday Gift Guide; my festively themed magnum opus.
