词根词缀：pneumo-, pneum-, pneumono-, pneumon-

【来源及含义】Greek: lung; breath, breathe

【相关词根词缀】 Word units related to breath and breathe: hal-; pneo-; pneumato-; psych-; spiro.

【同源单词】amphipneust, amphipneustic, angiopneumography, apneumia, apneuses, apneusis

词根词缀：-rrhagia, -rrhage, -rrhagic

【来源及含义】Greek > Latin: a suffix; a bursting forth, excessive flow

【同源单词】blennorrhagia, blennorrhagic, dysmenorrhagia, hemorrhage, hemorrhaged, hemorrhagenic