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Shaped like or forming a ring.

[Latin ānulāris, from ānulus, ring; see annulus.]

an′nu·lar′i·ty (-lăr′ĭ-tē) n.
an′nu·lar·ly adv.
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References in periodicals archive ?
We can report good success in observing 4 minutes and 20 seconds of full annularity at the eclipse today," he (http://news.
8) Observers could barely distinguish an annular eclipse from the similar effects of a partial unless some peripheral conditions made it possible for them to witness the annularity.
The correspondence with growth line count chronologies strongly supports and verifies growth line annularity in geoduck clams.