annulate

comparative more annulate · superlative most annulate

1. Having an annular form or shape.
2. biologyDescribes a fern sporangium that has an annulus.
3. biologyDescribes a mushroom with an annulus on the stipe.

plural annulates

1. biologyOne of the Annulata.

present singular third person annulates · participle present annulating · participle past annulated · past annulated

1. transitivechemistryTo cause (something) to undergo an annulation reaction (a reaction which forms a ring of atoms).

   A conceptually different approach was undertaken by Schreiber and coworkers in which, rather than annulating the enediyne bridge onto a cyclohexane-type precursor, both rings were assembled in a single transformation, specifically an intramolecular Diels-Alder reaction (Scheme XII) (30).

   1995, Donald B. Borders, Terrence W. Doyle, editors, Enediyne Antibiotics as Antitumor Agents, New York, N.Y. […]: Marcel Dekker, Inc., →ISBN, page 393