
1) Absolutely necessary 2) Anything indispensable 3) Basic 4) Basic and fundamental 5) Central 6) Chief 7) Chief point 8) Compulsory 9) Critical 10) Crucial 11) De rigueur 12) Fundamental 13) Hardly necessary 14) Highly important 15) Important 16) Indispensable 17) Indispensible 18) Intrinsic 19) Like some oils
Found on
https://www.crosswordclues.com/clue/essential

1) All important 2) Basic 3) Compulsory 4) Constituent 5) Constitutive 6) Crucial 7) Desideratum 8) Fundamental 9) Important 10) Inherent 11) Intrinsic 12) Intrinsical 13) Key 14) Must 15) Near 16) Necessary 17) Need 18) Primary 19) Required 20) Rudimentary 21) Significant 22) Staple 23) Substantive
Found on
https://www.crosswordclues.com/clue/essential
[biology] An essential part of an organism is something that the organism cannot continue to be alive or reproduce without. For instance, mitochondria are essential to most eukaryotic cells. Genes can also be considered with regards to their essentiality. Essentiality is an important property in the context of pathogens, since drugs acting ...
Found on
http://en.wikipedia.org/wiki/Essential_(biology)

• (a.) Hence, really existing; existent. • (a.) Belonging to the essence, or that which makes an object, or class of objects, what it is. • (a.) Important in the highest degree; indispensable to the attainment of an object; indispensably necessary. • (a.) Necessary; indispensable; -- said of those tones which constitute a chord,...
Found on
http://thinkexist.com/dictionary/meaning/essential/

1. Belonging to the essence, or that which makes an object, or class of objects, what it is. 'Majestic as the voice sometimes became, there was forever in it an essential character of plaintiveness.' (Hawthorne) ... 2. Hence, really existing; existent. 'Is it true, that thou art but a a name, And no essential thing?' (Webster (1623)) ... 3. Importa...
Found on
http://www.encyclo.co.uk/local/20973

1. Something that cannot be done without.
Found on
http://www.encyclo.co.uk/local/22410
Es·sen'tial (ĕs*sĕn'sj
a l)
adjective [ Confer French
essentiel . See
Essence .]
1. Belonging to the essence, or that which makes an object, or class of objects, what it is. « Majestic as the voice sometimes became, there was forever in it an
essenti...Found on
http://www.encyclo.co.uk/webster/E/68

Type: Term Pronunciation: ĕ-sen′shăl Definitions: 1. Necessary, indispensable, (essential amino acids, essential fatty acids). 2. Characteristic of. 3. Determining. 4. Of unknown etiology. 5. Relating to an essence (essential oil). Synonyms: intrinsic
Found on
http://www.medilexicon.com/medicaldictionary.php?t=30473

Essential: 1. Something that cannot be done without. 2. Required in the diet, because the body cannot make it. As in an essential amino acid or an essential fatty acid. 3. Idiopathic. As in essential hypertension. 'Essential' is a hallowed term meaning 'We don't know the cause.'
Found on
http://www.medterms.com/script/main/art.asp?articlekey=3332

1. something that cannot be done without. 2. For the purposes of this weight loss glossary, required in the diet, because the body cannot make it. As in an essential amino acid or an essential fatty acid. 3. Idiopathic. As in essential hypertension. "Essential" is a hallowed term meaning "We don't know the cause."
Found on
http://www.obesityhelp.com/content/wls_glossary.html

In music, the term essential is said of those tones which constitute a chord, in distinction from ornamental or passing tones.
Found on
http://www.probertencyclopaedia.com/browse/VE.HTM

[
adj] - being or relating to or containing the essence of a plant etc 2. [adj] - absolutely necessary 3. [adj] - absolutely required and not to be used up or sacrificed 4. [adj] - basic and fundamental
Found on
http://www.webdictionary.co.uk/definition.php?query=essential

Any one of a class of odoriferous, volatile liquids, Oil insoluble in water, which are obtained from plants to which they impart odors and other characteristic properties.
Found on
http://www.winning-homebrew.com/brewing-terms.html
indispensable adjective absolutely necessary; vitally necessary; `essential tools and materials`; `funds essential to the completion of the project`; `an indispensable worker`
Found on
https://www.encyclo.co.uk/local/20974

absolutely necessary; indispensable: Discipline is essential in an army. · pertaining to or constituting the essence of a thing. · noting or containing an essence of a plant, drug, etc. · being such by its very nature or in the highest sense; natural; spontaneous: essential happiness. · · (of a singularity of a functio...
Found on
https://www.infoplease.com/dictionary/essential

basic, indispensable, necessary.
Found on
https://www.ncbi.nlm.nih.gov/books/NBK326680/
[Test terms] of the greatest importance
Found on
https://www.vocabulary.com/lists/1017047
[Social studies terms] absolutely necessary
Found on
https://www.vocabulary.com/lists/1162879
No exact match found.