essential oil
US /ɪˌsen.ʃəl ˈɔɪl/
UK /ɪˌsen.ʃəl ˈɔɪl/

1.
olio essenziale
a natural oil typically obtained by distillation and having the characteristic fragrance of the plant or other source from which it is extracted.
:
•
Lavender essential oil is known for its calming properties.
L'olio essenziale di lavanda è noto per le sue proprietà calmanti.
•
She uses various essential oils for aromatherapy.
Usa vari oli essenziali per l'aromaterapia.