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.
A cycloalkane is a regular alkane with a ring or loop. An example is cyclohexane, which is a ring of 6 carbon atoms, each bonded to 2 hydrogen atoms (C 6 H 12).We briefly discussed cycloalkanes in the alkanes unit of this book, but in this unit, we'll be going into much greater detail about cycloalkanes as well as cycloalkenes.-cyclopentylhexane. If, as in the above image, the cycloalkane has fewer carbons than a carbon chain it's connected to, then the longest carbon chain is the primary and the cyclic portion receives the substituent -yl ending and prefixes the primary name.