noun, adj — 5 senses
Etymology From Ancient Greek τροχοειδής (trokhoeidḗs), from τροχός (trokhós, “wheel”) + εἶδος (eîdos, “form, image”).
Geometry, Mathematics, Sciences The curve traced by a point on a circle as it rolls along a straight line
Biology, Malacology, Natural sciences An organism or fossil with a trochoid shell (especially one in the gastropod family Trochidae), or the shell itself.
Etymology From Ancient Greek τροχοειδής (trokhoeidḗs), from τροχός (trokhós, “wheel”) + εἶδος (eîdos, “form, image”).
Capable of rolling.
Allowing rotation.
Biology, Malacology, Natural sciences Of a shell or fossil High-spired; conical.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.