单词 | helix |
释义 | he·lix ![]() n. pl. he·lix·es or hel·i·ces (hĕlĭ-sēz′, hēlĭ-) 1. Mathematics A three-dimensional curve that lies on a cylinder or cone, so that its angle to a plane perpendicular to the axis is constant. 2. A spiral form or structure. 3. Anatomy The folded rim of skin and cartilage around most of the outer ear. 4. Architecture A volute on a Corinthian or Ionic capital. v. he·lixed, he·lix·ing, he·lix·es v.tr. To move or position (something) into the shape of a helix. v.intr. 1. To have the shape of a helix. 2. To move along a helical course; spiral. [Latin, from Greek; see wel-2 in the Appendix of Indo-European roots.] ![]() in a right circular cylinder |
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