The phrase "a fundamental term" is correct and usable in written English.
It can be used when discussing a key concept or essential word in a particular field or context.
Example: "In the study of linguistics, 'syntax' is considered a fundamental term that describes the structure of sentences."
Alternatives: "a key term" or "an essential term".
At that time, there were 40 of them -- Robbin gave them distinguishing and vaguely offensive names, like "Blue Blood Estates" and "Shotguns & Pickups" -- and the cluster became a fundamental term in business thinking, the niche in niche market.
An unanticipated and unilateral change in a fundamental term of her employment gave her a stark choice: to act against her religious convictions (which the court accepted were conscientiously and sincerely held) or to leave her employment.
"The legality and validity of the licenses was a fundamental term of the share subscription agreement between Telenor Group and Unitech Limited," said Pål Wien Espen, Telnor's general counsel, adding that the Supreme Court's move "conclusively demonstrates a clear breach of Unitech's warranties".
Representation is a fundamental term that is close to the operational biogeographical reality of SCP (Section III.5; Pressey & Logan, 1998; Margules & Pressey, 2000; Williams, 2001).
But focusing only on this misses a fundamental longer term trend.
The derivation of a fundamental moral term like "Good" from the empirical and experiential elements of human desires determined the naturalist character of Deweyan ethics.
Part of the challenge any executive faces in running a media conglomerate is understanding the difference between a down year in a cyclical business and a fundamental long-term threat.
"We've succeeded in what is a fundamental, long-term strategic position for the benefit of Welsh rugby.
If you believe in the competency of Snap's executive team in managing the pace of their roadmap and burn — by no means a trivial question, to be clear — it seems reasonable to put these considerations aside when taking a fundamental, long-term view on Snap's potential.
Without such a fundamental long-term investment, our anachronistic and unimaginative economy will continue to fade away, which means there will be few, if any jobs or anyone.
But to expect us to be moved to a critical engagement with the fundamental terms of our social being would be – frankly and idiomatically – a bit much.
