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vital function

/vaɪˈtæl fʌŋkˈʃən/ · vi.tal.fun.c tion
noun
  1. A fundamental activity or process necessary for the survival or well-being of an organism. The heart's vital function is to pump blood throughout the body.
  2. A crucial role or responsibility within a system or organization. The CEO's vital function is to make strategic decisions for the company.

Synonyms

essential functioncritical processlife-sustaining activitykey rolecrucial responsibility

Antonyms

non-essential functionirrelevant processdiscretionary activity
Did you know? The concept of vital functions has been studied extensively in medicine, particularly in the fields of cardiology and critical care, where understanding the importance of heart function is crucial for patient survival.

Related terms

vital signslife supportorgan functionsystemic processcritical care
Written by Lexi Wordsworth, Dictionary Editor 0 lookups Added Jul 18, 2026