5 letters · 15 points in Scrabble
noun a curve that lies on the surface of a cylinder or cone and cuts the element at a constant angle
noun a structure consisting of something wound in a continuous series of loops
noun type genus of the family Helicidae
originFrom Latin helix, from Ancient Greek ἕλιξ (hélix, “something twisted or spiral”).
Etymology from Wiktionary, CC BY-SA 3.0