The phrase "a primary matter" is correct and usable in written English.
It can be used to refer to an important or fundamental issue or topic in a discussion or context.
Example: "In our meeting, we need to address a primary matter that affects the entire project timeline."
Alternatives: "a key issue" or "a main concern".
And now, alongside her acclaimed work with the figure, a reinvigorated interest in landscape emerges as a primary subject matter -- and a new path along which the ambiguous and the narrative might travel in tandem.
The idea here again sounds Aristotelian: a substance has a certain essentially active component, the soul or substantial form or first entelechy, and a passive component, primary matter.
Everyone agreed that there was an urgent need for a digital archive to hold the kind of primary matter that all art history is built on.
Washington, like California and Louisiana, now has a top-two primary system where the general election is fought between the biggest vote getters in a primary, no matter their party.
Under normal conditions, primary matter flows from the poles of a vortex into its center, i.e., the sun, which is itself comprised of primary matter.
This process, already accelerated in the Renaissance, goes still faster in our time, and is not just the primary dynamic of our visual experience but also the primary matter of our art.
Yet this common substratum cannot be featureless, formless primary matter, as the Aristotelians propose.
In particular, he identifies primary matter with what he calls its 'primitive passive force' of resistance to changes in motion and to penetration, and the substantial form of a body with its 'primitive active force'.
Essential California: Will California's primary matter this year?
In 2008, turnout soared in states that finally had a primary that mattered, be it Indiana or Texas, North Carolina or Rhode Island.
