羊膜 ようまく Meanings Noun amnion Kanji 羊 sheep. Read as ヨウ. 膜 membrane. Read as マク. Words containing 羊膜 有羊膜類 (ゆうようまくるい) Amniota 羊膜類 (ようまくるい) amniotes 無羊膜類 (むようまくるい) anamniotes And 2 more. Word lists Anatomy Jinuma: Japanese Dictionary · Word lists