Essential oils, also known as etheric oils (aetheric oils),
essential oils, volatile oils, and aromatic oils, are large groups of vegetable
oils in viscous liquids at room temperature but easy evaporates so as to give a
distinctive aroma. Essential oils are the basic ingredients of perfumes or
natural (natural) rubbing oils. In the trade, distillates (distillation) of
essential oils are known as perfume seeds.
Biologists
consider essential oils as secondary metabolites that typically act as a
self-defense device in order not to be eaten by animals (pests) or as an agent
to compete with other plants (see alelopathy) in maintaining living space.
Although animals sometimes also smell (like musk from some ferrets or stinging
liquids from some ladybugs), they are not classified as essential oils.
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