Word
pentad
/ˈpentæd/
noun
五个一组；五元组
A group or set of five things; a quintet.
- 1.
Synonym of quintet: A group of five things, particularly
五个一组的事物
五个一组的事物；五；五价物；五天；五年；[医] 五价物
In use
The biologist identified a pentad of species that share a common ancestor.
In chemistry, a pentad often refers to a group of five atoms or bonds.
The meteor shower is expected to peak every pentad of years.
the pentad
The pentad is a prime number.
五是一个质数。
a pentad of [plural noun]
A pentad of scientists presented the findings.
五名科学家发表了这些发现。
in pentads
Students were arranged in pentads for the activity.
学生们以五人一组进行活动。
Common mistakes
The logo is a pentad.The logo is a pentagon.
pentad 指五个一组，而 pentagon 指五边形，表示形状时应用 pentagon。
There are five pentad in the set.There are five pentads in the set.
pentad 是可数名词，表示多个五组时应用复数形式 pentads。
Connections
Confusing words
Word family
- pentagon
- 五边形；五角形 · penta- + -gon
- pentameter
- 五音步诗行；五步格 · penta- + -meter
- pentathlon
- 五项全能运动 · penta- + -athlon
- pentagram
- 五角星；五芒星 · penta- + -gram
Learner notes
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.