noun🔗ShareA monoterpene hydrocarbon 1-methyl-4-prop-1-en-2-yl-cyclohexene found in the essential oils of oranges, lemons and similar fruit, and mainly responsible for their fragrance"The pleasant, citrusy smell that fills the air when you peel an orange is largely due to the presence of limonene in the rind. "compoundsubstancechemistryfruitplantChat with AIVocabulary GamePractice Reading