性腺的英文：
gonad
sex gland

参考例句：

gonadotrophic prolactin
促性腺催乳激素

a gonadotropic hormone.
刺激性腺产生的荷尔蒙

The gonads form from a group of large granulated yolk sac cells which invacle the germinal ridges
性腺是由一群大的颗粒的卵黄囊细胞入缀生殖峭而形成。

An organ in animals that produces gametes,especially a testis or an ovary.
性腺动物身上的一种器官，能产生配子，特别是指睾丸或卵巢

gonad是什么意思：
n. 生殖腺

The gonads open near the base of the abdomen and the excretory organs are usually Malpighian tubules
生殖腺开口于近腹部基部，排泄器官通常为马氏管。

The gonads form from a group of large granulated yolk sac cells which invacle the germinal ridges
性腺是由一群大的颗粒的卵黄囊细胞入缀生殖峭而形成。

"an individual who is incapable of reproduction as a result of removal, destruction, or inactivation of the gonads."
人或动物由于生殖器的去除、毁坏或无活动能力而丧失生殖能力的个体。

sex是什么意思：
n. 性别；性；性行为

There are members of both sexes in the committee.
委员会里男女委员都有。

You know the risks of promiscuous sex.
你知道滥交的危险。

The sex discrimination act defined two kinds of sex discrimination... Direct and indirect.
《反性别歧视法》阐释了直接歧视和接歧视。

gland是什么意思：
n. 腺

The glands of the stomach are typical simple branched tubular glands
胃腺是典型的单分枝管状腺。

The pancreas is an elongated, whitish gland.
胰脏是一个细长形的白色腺体。

The glands in the neck may enlarge.
颈部腺体可能增大。