Annulation

A series of transverse depressions on the cuticle of a nematode.

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 constructed from side-on condensed cyclic segments, for exam...
Found on http://en.wikipedia.org/wiki/Annulation

Annulation

• (n.) A circular or ringlike formation; a ring or belt.
Found on http://thinkexist.com/dictionary/meaning/annulation/

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

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

annulation

A circular or ringlike formation, as of the dermal scales on the tail of a mammal where one ring of scales that extends entirely around the tail is succeeded, posteriorly, by other rings.
Found on https://www.utep.edu/leb/keys/glossary.htm

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 made generally. DANHEISER, GERE and SARD (1982), JUN...
Found on http://www.chem.qmul.ac.uk/iupac/gtpoc/A.html
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