essential

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essential

1. Biochem (of an amino acid or a fatty acid) necessary for the normal growth of an organism but not synthesized by the organism and therefore required in the diet
2. derived from or relating to an extract of a plant, drug, etc.
3. Logic (of a property) guaranteed by the identity of the subject; necessary. Thus, if having the atomic number 79 is an essential property of gold, nothing can be gold unless it has that atomic number
4. Music denoting or relating to a note that belongs to the fundamental harmony of a chord or piece
5. Pathol (of a disease) having no obvious external cause
6. Geology (of a mineral constituent of a rock) necessary for defining the classification of a rock. Its absence alters the rock's name and classification
7. Music an essential note
References in periodicals archive ?
The Toronto meeting, which includes worship sessions, addresses, panel discussions and presentations, will "discuss and identify the critical issues and choices facing the Anglican Communion at this moment," according to the Essentials Web site.
HP Storage Essentials integrates seamlessly with HP Systems Insight Manager, the company's cross-server and storage management platform, which is provided at no cost with HP server and storage systems and enables basic storage management functions.
If this applies to your organization, one of the best things it can do is purchase the two-volume loose-leaf set HIPAA Privacy Essentials and HIPAA Privacy Implementation Guide, published by Privacy Council.