Any of several isomeric monoterpene hydrocarbons found in the essential oil of cardamom, marjoram and other herbs(noun)
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Use "terpinene" in a sentence
"Chemical analysis of the plant led to the isolation of L-sabinene, d-limonene, fenchone, a-terpinene and felandrene (Mukherje et al. 1964), as well as several triterpenic acids, such as ursolic acid (Misra et al. 1983), diterpenoids, such as suaveolic acid and suaveolol (Misra et al. 1981)."
"Thyme - In one study, carvacrol and alpha-terpinene, two compounds derived from the essential oil of thyme, were found to have significantly greater repellency than a commercial DEET repellent."
"The researchers suggest that a spray made with 2\% alpha terpinene is a promising natural mosquito repellent."