Definition of helicoidal in English:

helicoidal

adjective

  • See helicoid

    • ‘Thirteen pages with drawings for man-powered aeroplanes survive and there is one design for a helicoidal helicopter.’
    • ‘The energy is expressed in terms of the six helicoidal parameters: twist, tilt, roll, shift, slide, and rise.’
    • ‘The pattern of currents was originally represented as a spiral or helicoidal flow, but more complex cells of circulation have since been identified which can influence the distribution of erosion and deposition.’
    • ‘One could pursue this type of analysis further and compute, for example, the correlations between two different helicoidal parameters in different steps, etc.’
    • ‘Each inflorescence produces 200-300 flowers that have a helicoidal repartition and open in sequence from bottom to top.’

Pronunciation

helicoidal

/hiːlɪˈkɔɪd(ə)l/