Definition of hodograph in English:


Pronunciation /ˈhädəˌɡraf/ /ˈhɑdəˌɡræf/


  • A curve the radius vector of which represents in magnitude and direction the velocity of a moving object.

    ‘Look at hodographs derived from 8 a.m. wind speed and direction data for Flint and Peoria.’
    • ‘In the next two chapters it will reveal to us how to scale the hodographs for elliptical orbits.’
    • ‘The hodograph of a simple harmonic motion is shown at the left, with the time dependence displayed.’
    • ‘On the other hand, the hodograph was rotated approximately 180° from the canonical hodographs.’
    • ‘However, further studies showed a significant number of hodographs for left-moving storms exhibiting clockwise curvature below 1 km.’


Mid 19th century from Greek hodos ‘way’+ -graph.