main diagonal

noun

, Mathematics.

1. diagonal9

Example Sentences

The darkest squares along the main diagonal represent spots of closest interaction.

From Nature

Her design kept the main diagonal entry street onto the property and a parking garage, but installed sports fields where the lagoon now is.

From Washington Times

However, place a rook on each square of the main diagonal — we have eight rooks, none of which are attacking each other.

From New York Times