卵円孔 らんえんこう Meanings Noun foramen ovale; oval foramen of the fetal heart Kanji 卵 egg. Read as ラン. 円 circle. Read as エン. 孔 aperture. Read as コウ. Words containing 卵円孔 卵円孔開存 (らんえんこうかいぞん) patent foramen ovale Word lists Anatomy Jinuma: Japanese Dictionary · Word lists