• Trochoid

    Origin

    From Ancient Greek τροχοειδής, from τροχός (trokhos, "wheel") + εἶδος (eidos, "form, image")

    Noun

    trochoid

    (plural trochoids)
    1. (mathematics) The curve traced by a point on a circle as it rolls along a straight line

    Full definition of trochoid

    Adjective

    trochoid

    1. capable of rolling
    2. allowing rotation
    © Wiktionary