dyad

• n. 双；[生物] 二分体；一对；[化学] 二价元素
• adj. 二的；双的

来自拉丁语dyad, 二，词源two. 用于化学名词二价元素等。

dyad (n.)

1670s, from Latin dyad-, stem of dyas, from Greek dyas "the number two, a group of two," from duo "two" (see two). Specific sense in chemistry ("a bivalent element") is by 1865; also used in biology, poetics, mathematics. Related: Dyadic.

1. As a result, dyad spores formed.

结果形成二分体孢子.

来自辞典例句