Radial: A word with diverse meanings in medicine and the biomedical sciences: 1  Pertaining to the radius, the smaller bone in the forearm. 2  The radial artery is so named because of its proximity to the radius. 3  Pertaining to the radius of a circle.
A 3D model of ethyne (acetylene), the simplest alkyne. In organic chemistry, an alkyne is an unsaturated hydrocarbon containing at least one carbonâcarbon triple bond. The simplest acyclic alkynes with only one triple bond and no other functional groups form a homologous series with the general chemical formula CnH2nâ2.
The stapes (aka stirrup) is the smallest of the three auditory  ossicles of the middle ear. These little bones amplify and  transmit sound vibrations from the tympanic mem â¦ brane (eardrum) to  the oval window.The stapes is in direct contact with the oval  window.iddle ear. The auditory ossicles are the three smallest bones in the body, the malleus, incus, and stapes.