( a. )
Containing the essence or characteristic portion of a substance, as of a plant; highly rectified; pure; hence, unmixed; as, an essential oil.
( a. )
Containing the essence or characteristic portion of a substance, as of a plant; highly rectified; pure; hence, unmixed; as, an essential oil.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012