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 are organic chemical compounds that include a triple covalent bond between two carbon atoms.n terms of the number of carbon atoms in each branch (i.e. methyl-indicates a branch consisting of just one carbon atom attached to the main chain, ethyl-indicates a branch of two carbon atoms in length, etc.) and their.