Last Updated：2025/11/27

(biology) Fertilization involving the fusion of the male and female gametes outside the bodies of the reproducing individuals.

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external fertilization

Source Word

external fertilization

uncountable usually

(biology) Fertilization involving the fusion of the male and female gametes outside the bodies of the reproducing individuals.

Japanese Meaning

外部受精：生殖する個体の体外で、雄性生殖細胞と雌性生殖細胞が融合することによって起こる受精の方式

Many amphibians rely on external fertilization, releasing eggs and sperm into the water where they meet.

多くの両生類は体外受精に依存しており、卵子と精子を水中に放出してそこで融合させます。

Sense（1）

(biology) Fertilization involving the fusion of the male and female gametes outside the bodies of the reproducing individuals.

external fertilizations

（ plural ）