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Pronunciation varies by accent · noun
(organic chemistry) Any addition reaction in which one ring is attached to another.
Aldrichimica Acta Volume 30 No 4 (pdf) from Sigma-Aldrich The annellation of the pyrimidine ring onto alicyclic alkenes has been achieved using Diels-Alder chemistry.
Use annellation when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Annellation means (organic chemistry) Any addition reaction in which one ring is attached to another.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Aldrichimica Acta Volume 30 No 4 (pdf) from Sigma-Aldrich The annellation of the pyrimidine ring onto alicyclic alkenes has been achieved using Diels-Alder chemistry.
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