annular
adj. C1 Advanced US //ˈænjəɫɝ// UK //ɐnjˈʊlɑː// an·nu·lar
adj. shaped like a ring or having a ring-like part. It often describes things that have a hole in the center, like a ring or a donut.
adj. relating to, or having the shape of, a ring. Often describes structures with a central opening or a circular band.
The sun was hidden behind an annular eclipse.
The scientist examined the annular structure of the cell wall to understand how nutrients entered the organism.
In astronomy, an annular eclipse occurs when the moon is at its farthest point from Earth, resulting in a bright ring of sunlight visible around the moon's edge.
From Latin ānulāris (“ring-shaped”); (possibly through French annulaire), from ānulus (“ring”).