What does annulation mean?
Definitions for annulation
an·nu·la·tion
This dictionary definitions page includes all the possible meanings, example usage and translations of the word annulation.
Did you actually mean annelidan or annihilation?
Wiktionary
annulationnoun
The formation of a ring
annulationnoun
Any reaction that forms a ring of atoms
annulationnoun
Any structure in the form of a ring
Etymology: * From annulus
Wikipedia
Annulation
In organic chemistry annulation (from the Latin anellus for "little ring"; occasionally annelation) is a chemical reaction in which a new ring is constructed on a molecule. Examples are the Robinson annulation, Danheiser annulation and certain cycloadditions. Annular molecules are constructed from side-on condensed cyclic segments, for example helicenes and acenes. In transannulation a bicyclic molecule is created by intramolecular carbon-carbon bond formation in a large monocyclic ring. An example is the samarium(II) iodide induced ketone - alkene cyclization of 5-methylenecyclooctanone which proceeds through a ketyl intermediate:
Webster Dictionary
Annulationnoun
a circular or ringlike formation; a ring or belt
Wikidata
Annulation
Annulation in organic chemistry is a chemical reaction in which a new ring is constructed on another molecule. Examples are the Robinson annulation, Danheiser annulation and certain cycloadditions. Annular molecules are constructed from side-on condensed cyclic segments, for example helicenes and acenes. In transannulation a bicyclic molecule is created by intramolecular carbon-carbon bond formation in a large monocyclic ring. An example is the samarium iodide induced ketone - alkene cyclization of 5-methylenecyclooctanone which proceeds through a ketyl intermediate:
Anagrams for annulation »
unnational
Numerology
Chaldean Numerology
The numerical value of annulation in Chaldean Numerology is: 2
Pythagorean Numerology
The numerical value of annulation in Pythagorean Numerology is: 4
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"annulation." Definitions.net. STANDS4 LLC, 2024. Web. 23 Apr. 2024. <https://www.definitions.net/definition/annulation>.
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