The volatile oil, distilled with steam from the fresh overground parts of the flowering plant of Mentha viridis or M. Cardiaca, a flavoring agent. ... (05 Mar 2000) ... 
the volatile oil distilled with steam from the fresh overground parts of Mentha spicata or M. cardiaca, used as a flavor for pharmaceutical preparations.
Type: Term Definitions: 1. the volatile oil, distilled with steam from the fresh overground parts of the flowering plant of Mentha viridis or M. cardiaca, a flavoring agent.
[n] - an aromatic oil obtained from the spearmint plant
noun an aromatic oil obtained from the spearmint plant