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Definitions

helical

[hel-i-kuhl, hee-li-] / ˈhɛl ɪ kəl, ˈhi lɪ- /
ADJECTIVE
spiral
Synonyms
STRONGEST
circling coiled
STRONG
circular circumvoluted corkscrew curled radial rolled scrolled wound
WEAK
cochlear helicoid screw-shaped tendrillar tortile voluted whorled
Antonyms
WEAK
straight uncurling unwinding

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In optics, this concept applies both to materials and to light itself, which can travel in a helical pattern.

From Science Daily • Mar. 21, 2026

To demonstrate the capabilities of the method, the team fabricated helical nanodevices from the magnetic crystal Co3Sn2S2.

From Science Daily • Jan. 25, 2026

They found that the helical fibers formed by the second-generation dendron chlorophylls exhibited a highly ordered structure, while the third-generation dendron chlorophylls displayed a more homogeneous, spherical shape.

From Science Daily • Nov. 21, 2024

The magnetic fields induced by each atomic magnetic moment cancel each other out, so the helical magnets do not generate any macroscopic magnetic field.

From Science Daily • Mar. 22, 2024

Six weeks of listening to Francis had made me realize that the crux of the matter was whether Rosy’s new X-ray pictures would lend any support for a helical DNA structure.

From "Double Helix" by James D. Watson