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.
IUPAC Rules for Alkyne Nomenclature 1. The yne suffix (ending) indicates an alkyne or cycloalkyne. 2. The longest chain chosen for the root name must include both carbon atoms of the triple bond.he following table lists the IUPAC names assigned to simple continuous-chain alkanes from C-1 to C-10. A common ane suffix identifies these compounds as alkanes. Longer chain alkanes are well known, and their names may be found in many reference and text books.