(plural only, figuratively) Those parts of a system without which it cannot function.
(medicine, plural only) Vital signs.
Vitals Sentence Examples
I observed that the vitals of the village were the grocery, the bar-room, the post-office, and the bank; and, as a necessary part of the machinery, they kept a bell, a big gun, and a fire-engine, at convenient places; and the houses were so arranged as to make the most of mankind, in lanes and fronting one another, so that every traveller had to run the gauntlet, and every man, woman, and child might get a lick at him.
The nurse smiled again and studied the micro in her hand, which monitored his vitals.
We definitely need your vitals but the stuff is spread among different people working independently of each other.
I felt like I was coming out of the closet to a computer when I blabbed my vitals electronically.
She clamped her mouth closed, watching him check Selyn's vitals with the urgency and diligence of a man whose life depended upon the results.