|1.||essential to maintain life: the lungs perform a vital function|
|2.||forceful, energetic, or lively: a vital person|
|3.||of, relating to, having, or displaying life: a vital organism|
|4.||indispensable or essential: books vital to this study|
|5.||of great importance; decisive: a vital game|
|6.||archaic influencing the course of life, esp negatively: a vital treachery|
|a. the bodily organs, such as the brain, liver, heart, lungs, etc, that are necessary to maintain life|
|b. the organs of reproduction, esp the male genitals|
|8.||(plural) the essential elements of anything|
|[C14: via Old French from Latin vītālis belonging to life, from vīta life]|
vital vi·tal (vīt'l)
Of, relating to, or characteristic of life.
Necessary to the continuation of life.
Used or done on a living cell or tissue, as in staining.
Destructive to life; fatal, as of an injury.
vitals vi·tals (vīt'lz)
The vital body organs.
The parts that are essential to continued functioning, as of a system.
vital signs (pulse rate, temperature, respiratory rate)