ONE-LUNG Meaning of ONE-LUNG in English ˈ ̷ ̷| ̷ ̷ adjective 1. or one-lunged ˈ ̷ ̷|ləŋd : having only one lung2. slang : having only one cylinder a one-lung jalopya one-lung motorboat Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012