germinal disk

(biology) a small circular white spot on the surface of the yolk of an egg

Japanese Meaning

卵黄の表面にある小さな円形の白い斑点

The biologist carefully examined the chicken egg's germinal disk under the microscope to determine if it was fertilized.

生物学者は顕微鏡で鶏卵の胚盤を慎重に観察し、受精しているかどうかを確認した。

Sense（1）

(biology) a small circular white spot on the surface of the yolk of an egg

germinal disks

（ plural ）