痰唾 (たんつば) Japanese meaning | KotomoraPlease don't spit on the street.
喀痰 is a formal medical term for expectorated sputum, used in clinical contexts.
Etymology
Compound of 痰 (たん, 'phlegm') and 唾 (つば, 'saliva'). The reading たんつば is a straightforward combination of the two kun'yomi readings.