受 精 卵(じゅせいらん)

じゅせいらん

noun

fertilized egg; fertilized ovum; zygote

1. fertilized egg; fertilized ovum; zygote

An egg cell that has been fertilized by a sperm cell — used in biology, reproductive medicine, and everyday discussion of pregnancy, IVF, and animal breeding. Also used for fertilized eggs of birds (e.g., chickens) that will develop into chicks if incubated.

受精卵(じゅせいらん)が子宮(しきゅう)に着床(ちゃくしょう)した。

The fertilized egg implanted in the uterus.

体外(たいがい)受精(じゅせい)で作(つく)られた受精卵(じゅせいらん)を凍結保存(とうけつほぞん)した。

The fertilized eggs created through IVF were cryopreserved.

ニワトリの受精卵(じゅせいらん)を温(あたた)めると、約(やく)21日(にち)でヒヨコが生(う)まれる。

If you incubate a chicken's fertilized egg, a chick hatches in about 21 days.

Composed of 受精(じゅせい) (fertilization) and 卵(らん) (egg, in its Sino-Japanese reading). The kanji 卵(らん) is read らん only in compounds; the standalone noun for "egg" is 卵(たまご).

Common collocations

受精卵(じゅせいらん)ができる: a fertilized egg forms
受精卵(じゅせいらん)が着床(ちゃくしょう)する: the fertilized egg implants
受精卵(じゅせいらん)を培養(ばいよう)する: to culture a fertilized egg
受精卵(じゅせいらん)を凍結(とうけつ)する: to freeze a fertilized egg
体外(たいがい)受精(じゅせい)の受精卵(じゅせいらん): IVF-created fertilized egg

Related words

受精(じゅせい): fertilization
卵子(らんし): ovum, egg cell (before fertilization)
精子(せいし): sperm
胚(はい): embryo — what the 受精卵(じゅせいらん) develops into
無精卵(むせいらん): unfertilized egg — the antonym, commonly used for supermarket chicken eggs

general

Added 2026.4.13 4:25 · Revised 2026.9.2 13:02

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