positive		Half the difference between maximum and minimum.
second		Intercepted by a central angle in a circle.
complex		(pi)/2 radians in degrees.
circle		The reciprocal of the sine.
sine		One cycle of a trigonometric function.
asymptote		Terminal sides coincide.
minute		The reciprocal of the cosine.
parabola		Instrument for drawing circles.
radian		Two angles whose sum is 180 degrees.
hexagon		Angle from horizontal down to line of sight.
elevation		The reciprocal of the tangent.
depression		Graph of y = x^2.
amplitude		Two angles whose sum is 90 degrees.
secant		Name for the origin in polar graphing.
arcsin		Longest side in a right triangle.
ninety		A heart-shaped curve.
line		Angle from horizontal up to line of sight.
complementary		1/60th of a minute.
supplementary		Number in the form "a bi".
coterminal		Secant is the __?__ of the cosecant.
cosecant		Instrument for measuring angles in degrees.
rose		Graph of x^2 y^2 = r^2.
compass		1/360th revolution.
identity		1/60th of a degree.
frequency		The ratio of the opposite leg to the hypotenuse.
negative		Sign of an angle with counter-clockwise rotation.
protractor		Line which is appoached by a graph.
tangent		Graph of y = mx b.
cardioid		The change in y over the change in x.
oblique		The set of possible input values for a function.
hypotenuse		The ratio of the adjacent leg to the hypotenuse.
cofunction		The set of output values for a function.
arc		The ratio of the opposite leg to the adjacent leg.
period		The inverse of the sine function.
cosine		Sign of an angle with clockwise rotation.
pole		A radial angle.
range		The reciprocal of the period.
cotangent		A non-right triangle.
slope		A six-sided polygon.
domain		Polar graph with "leaves".
degree		An equation that is true for all values in the domain.