Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of helical is as below...

Pitch :: Pitch (n.) The length, measured along the axis, of a complete turn of the thread of a screw, or of the helical lines of the blades of a screw propeller..

Twist :: Twist (v. i.) To follow a helical or spiral course; to be in the form of a helix.

Helical :: Helical (a.) Of or pertaining to, or in the form of, a helix; spiral; as, a helical staircase; a helical spring..

Spiral :: Spiral (a.) Winding round a cylinder or imaginary axis, and at the same time rising or advancing forward; winding like the thread of a screw; helical..

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