meso

https://doi.org/10.1351/goldbook.M03838
A prefix to indicate the presence of a symmetry element of the second kind (see @C01058@) in a chemical species which is usually one of a set of @D01679@ that also includes a @C01057@ member.
See:
chirality
,
diastereoisomerism
,
meso-compound
Source:
PAC, 1996, 68, 2193. (Basic terminology of stereochemistry (IUPAC Recommendations 1996)) on page 2211 [Terms] [Paper]