It signifies an enormous number of things, from pot-hooks to trigonometry.
This is not because the details of trigonometry are all needed in physics.
I worked off a year's trigonometry that summer, and began Virgil alone.
They found them deficient in trigonometry and canned them off the team.
I never saw him but during a fortnight, when I took it into my head to do trigonometry.
So are you—of words, blurted out Sid Henderson, as he leafed his trigonometry.
He also edited a text-book on trigonometry for the use of the cadets.
He was undecided between it and a trigonometry, but in the end he went off with the trigonometry.
He advanced the science of trigonometry, but did not contribute to geometry.
Some schools have transit instruments for the use of their classes in trigonometry.