Word · Frequency #28170
helical
螺旋状的
in the shape of a coil; spiral-shaped
- 1.
In the shape of a helix.
螺旋形的
螺旋形的；螺旋状的；[电] 螺线
In use
The spring has a helical shape that allows it to stretch and compress.
This pasta is helical, so the sauce clings to every piece.
The DNA molecule is famous for its helical structure, which is called a double helix.
helical + noun
helical 作定语时放在名词前，常见搭配有 helical gear、helical spring。
The helical staircase leads to the top floor.
螺旋楼梯通往顶层。
be + helical
作表语时表示主语的形状呈螺旋状，语气比定语用法更正式。
A DNA molecule is helical.
DNA 分子是螺旋形的。
helical in shape
也可以说 spiral-shaped，但 helical 更常用于科学语境。
The wire is helical in shape.
这根金属丝呈螺旋状。
Common mistakes
The DNA has a helix structure.The DNA has a helical structure.
helix 是名词，不能直接修饰名词；修饰名词应改用形容词 helical。中文里“螺旋”常兼作名词和形容词，但英语需要区分词性。
The wire is wound helical around the core.The wire is wound helically around the core.
wound 是动词，修饰动作要用副词 helically，不能用形容词 helical。这是常见的形容词与副词混用错误。
Connections
Collocations
- helical gear
- 斜齿轮
- The transmission uses helical gears to reduce noise.该变速箱使用斜齿轮来降低噪音。
- helical structure
- 螺旋结构
- DNA has a double helical structure.DNA具有双螺旋结构。
- helical spring
- 螺旋弹簧
- The mattress is supported by helical springs.这张床垫由螺旋弹簧支撑。
- helical path
- 螺旋路径
- The electron follows a helical path in the magnetic field.电子在磁场中沿螺旋路径运动。
- helical antenna
- 螺旋天线
- The satellite uses a helical antenna to transmit signals.该卫星使用螺旋天线发射信号。
- helical staircase
Learner notes
Memory Tip
helical 是 helix（螺旋）的形容词，可联想 DNA 双螺旋或弹簧线圈，形状就是螺旋状的。
Context & Register
语域：formal 常见场景：科学文献、工程设计、几何描述 该词通常用于科技、工程或数学等正式书面语境，口语中较少见。
Pronunciation & Spelling
以上词与 helical 拼写都含 -ical，但发音并不相同；helical 读 /ˈhɛlɪkəl/，重音在第一音节，而 typical、political 等重音位置或元音不同。目前没有常见的与 helical /ˈhɛlɪkəl/ 完全押韵的词。
Dictionary facts from ECDICT, WIKTIONARY.