helix helix /ˈhiːlɪks/

noun

1. A structure consisting of something wound in a continuous series of loops  ( helix , spiral , volute , coil , whorl )
   a structure consisting of something wound in a continuous series of loops
    A coil of rope
   a coil of rope
   
   
2. A curve that lies on the surface of a cylinder or cone and cuts the element at a constant angle  ( helix , spiral )
   a curve that lies on the surface of a cylinder or cone and cuts the element at a constant angle
   
   

 Helix

1. Type genus of the family Helicidae  ( genus Helix , Helix )
   type genus of the family Helicidae
   
   

 scientific agriculture scientific agriculture /saɪənˈtɪfɪk æɡrɪˈkʌltʃər/

noun

1. The application of soil and plant sciences to land management and crop production  ( agronomy , scientific agriculture )
   the application of soil and plant sciences to land management and crop production
   
   

 nutria nutria /ˈnuːtriːə/

noun

1. Aquatic South American rodent resembling a small beaver; bred for its fur  ( coypu , Myocastor coypus , nutria )
   aquatic South American rodent resembling a small beaver; bred for its fur
   
   

 wide-angle lens wide-angle lens /waɪdˈæŋɡəl lɛnz/

noun

1. A camera lens having a wider than normal angle of view (and usually a short focal length); produces an image that is foreshortened in the center and increasingly distorted in the periphery  ( fisheye lens , wide-angle lens )
   a camera lens having a wider than normal angle of view (and usually a short focal length); produces an image that is foreshortened in the center and increasingly distorted in the periphery