咯血 kǎxiěluòxuè to cough up blood Definitions Defs Origin Strokes Stroke Words Sentences Sents kǎxiě to cough up blood 咯 kǎ to cough up To use force to clear something from the throat or windpipe, such as phlegm or blood.血 xuè noun blood The red fluid that circulates in the heart and blood vessels; used in formal contexts, compounds, or when used alone in spoken language.luòxuè to spit blood 咯 luò [transliteration] (bound form) Used in transliterated words, such as 吡咯 bǐluò血 xuè noun blood The red fluid that circulates in the heart and blood vessels; used in formal contexts, compounds, or when used alone in spoken language.