ANNULAR

AN'NULAR, adjective [Latin annulus, a ring, from Celtic ain, a circle, and ul, young, small; annulus, a little circle.]Having the form of a ring; pertaining to a ring.Annular crystal is when a hexahedral prism has six, or an octahedral prism eight marginal faces, disposed in a ring about each base; or when these prisms are truncated on all their terminal edges.

---

annular. Annular, a. in form of or like a ring, round

---

An″nu‐lar (�), a. [[L. annularis, fr. annulis ring: cf. F. annulaire.]] 1. 1. Pertaining to, or having the form of, a ring; forming a ring; ringed; ring-shaped; as, annular fibers.
2. 2. Banded or marked with circles.
Annular eclipse (Astron.), an eclipse of the sun in which the moon at the middle of the eclipse conceals the central part of the sun's disk, leaving a complete ring of light around the border.