#ring shaped
- Annular — Having the shape of a ring or pertaining to a ring; (noun) the fourth digit of the human hand, located between the middle and little fingers, traditionally where the wedding ring is worn; (astronomy) a type of solar eclipse in which the Moon covers only the center of the Sun, leaving a bright outer ring visible.
- Annulo- — A combining form derived from Latin (anulus), used in scientific, anatomical, or botanical terminology to indicate a ring shape, a circular structure, or a ring-like arrangement of tissues or organs.
- Annuloid — Resembling a ring or a torus in shape, without strictly fulfilling their perfect geometric criteria; (noun) a three-dimensional surface or body generated by rotating a closed curve around an axis located in the same plane, used in designing circular mechanical components.