life-threat·en·ing | \ ˈlīf-ˌthret-niŋ 
, -ˌthre-tᵊn-iŋ \
, -ˌthre-tᵊn-iŋ \Definition of life-threatening
: capable of causing death : potentially fatal
a life-threatening disease/condition The injuries are serious but not life-threatening.
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More Definitions for life-threatening
life-threatening
adjectiveEnglish Language Learners Definition of life-threatening
: capable of causing someone's death
See the full definition for life-threatening in the English Language Learners Dictionary
life-threatening
adjectivelife-threat·en·ing | \ ˈlīf-ˌthret-ən-iŋ \
\Medical Definition of life-threatening
: capable of causing death : potentially fatal
life-threatening injuries a life-threatening allergic reaction life-threatening arrhythmia
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Time Traveler for life-threatening
The first known use of life-threatening was in 1759
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