Translation guide
Describes something that has the shape of a helix or spiral, or moves in a helical path. In Japanese, this is most commonly expressed with the adjective らせん状の (rasen-jō no) or the noun らせん (rasen) used attributively.
Describing an object or structure that is coiled or spiral-shaped, like a spring, screw thread, or DNA.
The most direct and common way to say 'helical'. It literally means 'in the form of a spiral/helix'. Used as an adjective before nouns.
DNA has a helical structure.
Describing motion that follows a helix, such as a football pass or a particle trajectory.
Literally 'move in a helical manner'. The adverb らせん状に modifies the verb.
This staircase is helical (spiral).
The noun 'spiral' or 'helix'. Can be used attributively by placing it before another noun, often with の, but sometimes directly in compounds.
Means 'spiral-shaped' or 'whirlpool-shaped'. More commonly used for flat spirals or whirlpools, but can sometimes describe helical shapes in a broader sense. Less precise than らせん状の for 3D helices.
a spiral pattern
The ball flew in a helical path.
Means 'to draw a helix', i.e., to trace a helical path. Often used for objects moving through space.
The particle advances drawing a helix.