Annulus (Noun)
Meaning 1
A toroidal shape; "a ring of ships in the harbor"; "a halo of smoke".
Classification
Nouns denoting two and three dimensional shapes.
Synonyms
Hypernyms
Hyponyms
Meaning 2
(Fungi) a remnant of the partial veil that in mature mushrooms surrounds the stem like a collar.
Classification
Nouns denoting plants.