A specific disease caused by infection with Mycobacterium tuberculosis, the tubercle bacillus, which can affect almost any tissue or organ of the body, the most common site of the disease being the lungs.
The Upside-Down Triangle: a model for the 21st century church. (friends, let me offer a disclaimer that this post is deeply wonky. If church systems talk is what you want, read on. Otherwise, I'll be back to your regularly scheduled programming soon).
Every triangle is either an acute triangle, an obtuse triangle, or a right triangle. Another way to group triangles is by looking at the lengths of their sides: 1  Equilateral triangle: An equilateral triangle is one in which all three sides have the same length. 2  Isoceles triangle: An isoceles triangle is one in which two sides have the same length.