annulation
UK /ˌænjʊˈleɪʃən/ US /ˌænjʊˈleɪʃən/
noun 3
Definitions
noun
1
The formation of a ring
2
Any reaction that forms a ring of atoms
3
Any structure in the form of a ring
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noun
The formation of a ring
Any reaction that forms a ring of atoms
Any structure in the form of a ring