Simple Definition of sputum

from our Learner's Dictionary

sputum

noun

ˈspjuːtəm How to pronounce sputum (audio)
medical : a thick liquid that comes up from your lungs when you are sick

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“Sputum.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/sputum. Accessed 20 Jun. 2026.

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