TY - CHAP M1 - Book, Section TI - Essential Oils A1 - Kornreich Shawn, Lauren A2 - Nelson, Lewis S. A2 - Howland, Mary Ann A2 - Lewin, Neal A. A2 - Smith, Silas W. A2 - Goldfrank, Lewis R. A2 - Hoffman, Robert S. PY - 2019 T2 - Goldfrank's Toxicologic Emergencies, 11e AB - Essential oils are a class of volatile oils that are extracted through steam distillation or are cold pressed from the leaves, flowers, bark, wood, fruit, or peel of a single parent plant. The term essential refers to the essence of a plant rather than an indispensable component of the oil or a vital biologic function. These compounds are a mixture of complex hydrocarbons that give the oil its aroma and potential therapeutic properties and that occasionally cause toxicity. More than 500 essential oils exist and are typically categorized into five chemical groups: terpenes, quinines, substituted benzenes, aromatic/aliphatic esters, and phenols and aromatic/aliphatic alcohols. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/10/05 UR - accessemergencymedicine.mhmedical.com/content.aspx?aid=1163011220 ER -