annulate

Borrowed from New Latin annulatus, from Latin ānulātus.^[1]

annulate (comparative more annulate, superlative most annulate)

1. Having an annular form or shape.
2. (botany) Describes a fern sporangium that has an annulus.
3. (mycology) Describes a mushroom with an annulus on the stipe.

annulate (plural annulates)

1. (zoology) One of the Annulata.

annulate (third-person singular simple present annulates, present participle annulating, simple past and past participle annulated)

1. (transitive, chemistry) To cause (something) to undergo an annulation reaction (a reaction which forms a ring of atoms).
   • 1995, Donald B. Borders, Terrence W. Doyle, editors, Enediyne Antibiotics as Antitumor Agents, New York, N.Y. […]: Marcel Dekker, Inc., →ISBN, page 393:

     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).

annulāte

1. vocative masculine singular of annulātus