
Bonds resulting from the head-on overlap of atomic orbitals, in which the region of electron sharing is along and (cylindrically) symmetrical to the imaginary line connecting the bonded atoms.
Found on
http://www.chemistry-dictionary.com/definition/sigma+bonds.php

Bonds resulting from the head-on overlap of atomic orbitals, in which the region of electron sharing is along and (cylindrically) symmetrical to the imaginary line connecting the bonded atoms.
Found on
http://www.encyclo.co.uk/local/20728
No exact match found.