essential

Definitions

General English

  • adjective very important or necessary
  • noun something which is very important or which you cannot do without
  • plural noun the things that you must have

General Science

  • adjective extremely important or necessary
  • adjective referring to a disease with no obvious cause

Information & Library Science

  • adjective absolutely necessary to a person, situation or activity

Medical

  • adjective necessary for health
  • adjective extracted from a plant
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