noun
unfertilized egg
Biological term for an egg that has not been fertilized. Used in contexts such as reproduction, agriculture, and food.
未受精卵は孵化しない。
Unfertilized eggs do not hatch.
この料理には未受精卵を使っています。
This dish uses unfertilized eggs.
受精卵 means 'fertilized egg', the opposite of 未受精卵.
Compound of 未 (mi-, 'un-') + 受精 (jusei, 'fertilization') + 卵 (ran, 'egg').