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.
An alkyne is a hydrocarbon containing a carbonâcarbon triple bond; the simplest member ofthis family is acetylene, HLC'CLH. The chemistry of the carbonâcarbon triple bond issimilar in many respects to that of the carbonâcarbon double bond; indeed, alkynes andalkenes undergo many of the same addition reactions.he sufï¬x ane in the name of the corresponding alkane is replaced by the sufï¬x yne, and the triple bond is given the lowest possible number.Substituent groups that contain a triple bond (called alkynyl groups) are named by replac-ing the ï¬nal e in the name of the corresponding alkyne with the sufï¬x yl.