Look up: Annulation

1. Annulation
   A series of transverse depressions on the cuticle of a nematode.
   Found on http://www.encyclo.co.uk/visitor-contrib
   
   
2. annulation
   A transformation involving fusion of a new ring to a molecule via two new bonds. Some authors use the term 'annelation' for the fusion of an additional ring to an already existing one, and 'annulation' for the formation of a ring from one or several acyclic precursors, but this distinction is not ma...
   Found on http://www.chem.qmul.ac.uk/iupac/gtpoc/A
   
   
3. Annulation
   An`nu·la'tion noun A circular or ringlike formation; a ring or belt. Nicholson.
   Found on http://www.encyclo.co.uk/webster/A/88
   
   
4. Annulation
   • (n.) A circular or ringlike formation; a ring or belt.
   Found on http://thinkexist.com/dictionary/meaning
   
   
5. annulation
   (from the article `segmentation`) ...the particular metamerism within each group clearly demonstrates the derivative relationship of its members. In Acanthocephala and some members of ...
   Found on http://www.britannica.com/eb/a-z/a/78
   
   
6. annulation
   a ring-like, often pigmented cortical zone, usually more or less blackened, especially of branches of Neuropogon.
   Found on http://www.anbg.gov.au/glossary/webpubl/
   
   
7. Annulation
   `Annulation` (derived from annular, occasionally `annelation`) in organic chemistry is a chemical reaction in which a new ring is constructed on another molecule (often another ring). --> : Examples are the Robinson annulation, Danheiser Annulation and certain cycloadditions. `Annular` molecules are...
   Found on http://en.wikipedia.org/wiki/Annulation