The phrase "be the intermediary between" is correct and can be used in written English.
It means to act as a mediator or go-between in a situation or relationship. Example: As a project manager, I often have to be the intermediary between my team and upper management, ensuring effective communication and collaboration between the two parties.
p. What culture may have been the intermediary between the Maya and Olmec?
He is the intermediary between the company's pricing proposal analysts and the government agencies that audit its price proposals.
But when you clicked on an icon you got a pop-up menu: this was the intermediary between the user's intention and the computer's response.
Other top predators, like whales and seals, are also affected, as krill is the intermediary between the top and bottom of the food chain.
It is described as pervading everything that exists and as being the intermediary between the divine essence and matter and form.
But adding stem-cell lines, which can be differentiated into the myriad tissue types affected by disease, should allow scientists to search for molecular changes that are the intermediary between genes and the manifestation of a disease.
Philo of Alexandria, a 1st-century-ad Jewish philosopher, taught that the logos was the intermediary between God and the cosmos, being both the agent of creation and the agent through which the human mind can apprehend and comprehend God.
Because he was believed to be the epitome of all that was divine, he alone was the intermediary between humankind and the gods whom he summed up in his complex personality.
'He went totally over the top about the Prescott punch, for example.' Still, there was no doubt that they couldn't continue with the relationship and their jobs and, in November 2001, Hunter left the politics arena to work for BP, a company she had bonded with during the fuel crisis, when she was the intermediary between government and industry.
