释义
n.
an object having a three-dimensional shape like that of a wire wound uniformly in a single layer around a cylinder or cone, as in a corkscrew or spiral staircase
螺旋,螺旋状物。
Geometry a curve on a conical or cylindrical surface which would become a straight line if the surface were unrolled into a plane
【几何】 螺旋线。
Biochemistry an extended spiral chain of atoms in a protein, nucleic acid, or other polymeric molecule
【生化】 螺旋形链。
Architecture a spiral ornament
【建筑】 螺旋饰。
Anatomy the rim of the external ear
【剖】 耳轮。
词源
" mid 16th cent. (in the architectural sense ‘spiral ornament’): via Latin from Greek."