Vital
VI'TAL, adjective [Latin vitalis, from vita, life. This must be a contraction of victa, for vivo forms vixi, victus; Gr. contracted.]
1. Pertaining to life, either animal or vegetable; as vital energies; vital powers.
2. Contributing to life; necessary to life; as vital air; vital blood.
3. Containing life.
Spirits that live throughout, vital in every part - and vital virtue infus'd, and vital warmth.
4. Being the seat of life; being that on which life depends.
The dart flew on, and pierc'd a vital part.
5. Very necessary; highly important; essential. Religion is a business of vital concern. Peace is of vital importance to our country.
Pythagoras and Hippocrates affirm the birth of the seventh month to be vital [Little used.]
Vital air, pure air or oxygen gas, which is essential to animal life.