卵円 らんえん Meanings Noun oval Kanji 卵 egg. Read as ラン. 円 circle. Read as エン. Words containing 卵円 卵円孔 (らんえんこう) foramen ovale 卵円窓 (らんえんそう) oval window 卵円孔開存 (らんえんこうかいぞん) patent foramen ovale Jinuma: Japanese Dictionary · Word lists