phlegm

US /flem/
UK /flem/
"phlegm" picture
1.

a thick, yellowish-green substance that is produced in the nose and throat, especially when you have a cold

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He coughed up some phlegm after a long night.
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The doctor asked about the color of his phlegm.
:
sputummucus
2.

the quality of being calm and not easily excited or worried

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His calm demeanor and phlegm helped him handle the crisis.
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Despite the chaos, she maintained her characteristic phlegm.
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calmnesscomposureequanimityimperturbabilityserenity