n :  any of various isomeric hydrocarbons C₁₀H₁₆ found present in essential oils (as from conifers) and used esp. as solvents and in organic synthesis : broadly  :  any of numerous hydrocarbons (C₅H₈)_n found esp. in essential oils, resins, and balsams ter*pene*less adj ter*pe*nic adj 
 
 
 
Similar sounding terms:  hy·dro·pe·nia  ter·pin  tro·pane  tro·pe·ine 
 
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