13.He put the burs under the microscope and found tiny " hooks" at the ends of their bristles that seemingly latched onto most any kind of fur or clothing.
14.In 890 King Alfred the Great would designate it a " bur" , a fortified town continuing to use the thick Roman walls for protection against Viking raids.
15.To remove a brain tumor, or to clip an aneurysm, we start off by placing bur holes or small holes around the periphery of the window that we intend to make.
16.So when you're in a car and you sound the horn, usually press the middle of the steering wheel or something and go: " Bur, bur, bur, bur" , that's tooting.
17.Emerson put it this way : " the things taught in colleges and school are not an education, bur a means of education. " and Seneca noted that, " you should keep on learning as long as you're ignorant. "