principal argument

American  

noun

Mathematics.

1. the radian measure of the argument between −π and π of a complex number.

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Example Sentences

Oz’s energetic campaigning has been his principal argument for himself.

From Washington Post

Electability has been Biden’s principal argument in claiming to be at least a nominal front-runner.

From Washington Post

And a few projects by Western artists working in similar conceptual or land-oriented strains provides the ballast for Ms. Tomii’s principal argument: that the full global story of art in the 1960s features both active collaborations and accidental resonances between the East and the West, and between the big city and the countryside.

From New York Times

Late into the night after Netanyahu's TV appearance, his official Instagram account was being updated to support his principal argument — that corruption and bribery are the same, and if he didn’t accept cash gifts, he could not be guilty of bribery.

From Los Angeles Times

In the 2016 presidential race, the Common Core State Standards were debated, but the principal argument against them was that they interfered with state decision-making.

From Washington Post