Forming or shaped like a ring.
A ring or group of specialized cells around the sporangia of many ferns. By changing shape in response to variations in humidity, it breaks open the sporangium and then releases the spores with a whipping motion.
Rounded or circular; specif., rolled into a coil on its axis with the apex in the center, as the new fronds of a fern
A surface generated by rotating a closed curve about an axis that is in the same plane as the curve but does not intersect it.
The torus-shaped apparatus that contains plasma in nuclear fusion reactors.
Formed like a ring or of rings
shaped like a ring
Find another word for ring-shaped. In this page you can discover 11 synonyms, antonyms, idiomatic expressions, and related words for ring-shaped, like: annular, annulus, circinate, circular, coiled, toroid, torus, annulate, annulated, ringed and doughnut-shaped.