of the greatest importance; "the all-important subject of disarmament"; "crucial information"; "in chess cool nerves are of the essence"

being or relating to or containing the essence of a plant etc; "essential oil"

Oil: concentrated essences from plants, bark, roots, seeds, stems, flowers, fruits and leaves through a method of extraction, usually steam distilled

To be needed or required of something. In strict usage: That which constitutes the absolute essence or fundamental nature of a thing, and therefore must be present for it to exist. I know this isn't a magikal term, but consider the significance of the root portion of this word 'Essen' then review the previous two definitions. Maybe you too will find it interesting.

Oil - The aromatic oil that exists naturally and can be extracted from various plants and flowers.

Necessary. In the context of nutrition, this refers to the basic food elements (fats and amino acids) which cannot be synthesized by the body. These substances are necessary for cellular metabolism and viability and are therefore an essential part of the daily diet.

Something that cannot be done without. Required in the diet, because the body cannot make it. As in an essential amino acid or an essential fatty acid. Idiopathic. As in essential hypertension. "Essential" is a hallowed term meaning "We don't know the cause."

A substance that cannot be produced from the body, and therefore must be obtained from the diet.

anything indispensable; "food and shelter are necessities of life"; "the essentials of the good life"; "allow farmers to buy their requirements under favorable conditions"; "a place where the requisites of water fuel and fodder can be obtained"

Determining the importance of information in a text.

something that is very important or necessary

necessary; important.

adj. necessary »ù±3/4