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.
Alkynes: Molecular and Structural Formulas. The alkynes comprise a series of carbonâ and hydrogenâbased compounds that contain at least one triple bond. This group of compounds is a homologous series with the general molecular formula of C n H 2 nââ2 , where n equals any integer greater than one.