Liberal Dictionary English Dictionary
plural noun
- those bodily organs that are essential to life, as the brain, heart, liver, lungs, and stomach.
- the essential parts of something: the vitals of a democracy.
“organs of the body essential to life,” c.1600, from the adj. vital taken as a noun.
pl.n.
- The vital body organs.
- The parts that are essential to continued functioning, as of a system.