Associations to the word «Essential»

Wiktionary

ESSENTIAL, adjective. Necessary.
ESSENTIAL, adjective. Very important; of high importance.
ESSENTIAL, adjective. Being in the basic form; showing its essence.
ESSENTIAL, adjective. Really existing; existent.
ESSENTIAL, adjective. (of a lamination of a 3-manifold) Such that each complementary region is irreducible, the boundary of each complementary region is incompressible by disks and monogons in the complementary region, and no leaf is a sphere or a torus bounding a solid torus in the manifold.
ESSENTIAL, adjective. (medicine) Idiopathic.
ESSENTIAL, noun. A necessary ingredient.
ESSENTIAL, noun. A fundamental ingredient.
ESSENTIAL AMINO ACID, noun. (amino acid) One of the naturally occurring amino acids that the human body cannot synthesize, and so must be provided by dietary protein.
ESSENTIAL AMINO ACIDS, noun. Plural of essential amino acid
ESSENTIAL FATTY ACID, noun. Any fatty acid required for human metabolism that cannot be synthesized by the body and must be present in the diet; originally designated as vitamin F
ESSENTIAL INFIMUM, noun. (analysis) The infimum (greatest lower bound) of a function which holds almost everywhere. In symbols, \(\mathrm{ess }\inf f = \sup \{ m : \mu(\{ x : f(x) < m \}) = 0 \}\).
ESSENTIAL LISTENING, noun. A list of audio recordings and performances - frequently music - compiled by a critic or genre expert and deemed to be essential to understanding a music genre, style, performer or details of a famous person's life.
ESSENTIAL NUTRIENT, noun. (nutrition) A compound that must be obtained from food for survival
ESSENTIAL OIL, noun. A volatile oil, used to make perfumes and flavourings, especially one having the characteristic odour of the plant from which it is obtained.
ESSENTIAL OILS, noun. Plural of essential oil
ESSENTIAL PRIME IMPLICANT, noun. (electrical engineering) A prime implicant on a Karnaugh map which "covers" at least one 1 which is not covered by any other prime implicant.
ESSENTIAL PRIME IMPLICANTS, noun. Plural of essential prime implicant
ESSENTIAL SUPREMUM, noun. (analysis) The supremum (least upper bound) of a function which holds almost everywhere. In symbols, \(\mathrm{ess }\sup f = \inf\ \{ M : \mu(\{ x : f(x) < M \}) = 0 \}\)
ESSENTIAL TREMOR, noun. (medicine) (chiefly uncountable) A neurological condition that causes rhythmic shaking of unknown cause in one or more parts of the body during voluntary movements.

Dictionary definition

ESSENTIAL, noun. 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".
ESSENTIAL, adjective. Absolutely necessary; vitally necessary; "essential tools and materials"; "funds essential to the completion of the project"; "an indispensable worker".
ESSENTIAL, adjective. Basic and fundamental; "the essential feature".
ESSENTIAL, adjective. Of the greatest importance; "the all-important subject of disarmament"; "crucial information"; "in chess cool nerves are of the essence".
ESSENTIAL, adjective. Being or relating to or containing the essence of a plant etc; "essential oil".
ESSENTIAL, adjective. Defining rights and duties as opposed to giving the rules by which rights and duties are established; "substantive law".

Wise words

It is only with the heart that one can see rightly; what is essential is invisible to the eye.
Antoine de Saint-Exupery