mes-

CIDE DICTIONARY

mes-,

See Meso-. [1913 Webster]

mes-, [Gr. me`sos in the middle.].

A combining form denoting in the middle, intermediate. [1913 Webster]
Denoting a type of hydrocarbons which are regarded as methenyl derivatives. Also used adjectively. [1913 Webster]
Optically inactive due to compensating optical activity at two or more asymmetric centers, often due to a plane of symmetry within the molecular structure; as, meso-tartaric acid. [PJC]
Attached to a carbon atom located between two hereoatoms in a heterocyclic ring. [PJC]

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