急性灰白髄炎 きゅうせいかいはくずいえん Meanings Noun poliomyelitis; polio See also: ポリオ. Kanji 急 sudden. Read as キュウ. 性 nature. Read as セイ. 灰 ash. Read as カイ. 白 white. Read as ハク. 髄 marrow. Read as ズイ. 炎 flame. Read as エン. Word lists Medicine Jinuma: Japanese Dictionary · Word lists