Oils,Essential

《英文msh詞典》Oils,Essential
[同義詞] Oils,Essential
[主題詞] Oils,Volatile
[中文釋義] 油類,芳香
[英文釋義] Oils which evaporate readily. The volatile oils occur in aromatic plants,to which they give odor and other characteristics. Most volatile oils consist of a mixture of two or more TERPENES or of a mixture of an eleopten (the more volatile constituent of a volatile oil) with a stearopten (the more solid constituent). The synonym essential oils refers to the essence of a plant,as its perfume or scent,and not to its indispensibility. (From Dorland,28th ed)