also: たまごがら
noun
Refers to the hard outer covering of an egg, especially in biological or culinary contexts.
卵殻はカルシウムが豊富です。
Eggshells are rich in calcium.
ひよこが卵殻を破って出てきた。
The chick broke through the eggshell and came out.
Compound of 卵 (egg) and 殻 (shell). The reading らんかく uses the on'yomi of both characters, while たまごがら mixes kun'yomi and on'yomi.