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any of three isotopes of a colorless aromatic liquid hydrocarbon occuring in the volatile oil of cumin and thyme and used in the manufacture of synthetic resins

A colorless, liquid, combustible hydrocarbon, CH3.C6H4.C3H7, of pleasant odor, obtained from oil of cumin, oil of caraway, carvacrol, camphor, etc.; -- called also paracymene, and formerly camphogen.

A liquid derived from various volatile vegetable oils, such as that found in the seeds of Cuminum cyminum. In chemical constitution, it is parapropylmethylbenzene.