卵殻 (shinjitai kanji, kyūjitai kanji 卵殼, hiragana らんかく, rōmaji rankaku)
卵 (tamago, “egg”) + 殻 (kara, “shell”)
卵殻 (shinjitai kanji, kyūjitai kanji 卵殼, hiragana たまごがら, rōmaji tamagogara)