Definition
to be in mortal peril: to be in great danger; to be running the risk of death; to be at grave risk
- "Convinced that his beloved pet goldfish "Bubbles", a prize won at a local carnival, is in mortal peril, Thomas has quarantined Bubbles to a 6 by 6 by 6 inch glass bowl until a vaccine is discovered or doctors clear the fish for transport."
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