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Webster 1913 Edition
Annular
An′nu-lar
,Adj.
[L.
annularis
, fr. annulis
ring: cf. F. annulaire
.] 1.
Pertaining to, or having the form of, a ring; forming a ring; ringed; ring-shaped;
as,
. annular
fibers2.
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.
Webster 1828 Edition
Annular
AN'NULAR
,Adj.
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.