- Look up
annulus in Wiktionary, the free dictionary.
Annulus (or anulus) or
annular indicates a ring- or donut-shaped area or structure. It may
refer to:...
- In mathematics, an
annulus (pl.:
annuli or annuluses) is the
region between two
concentric circles. Informally, it is
shaped like a ring or a hardware...
-
string of
small ring-shaped
annuli. The
annuli are not true flagellomeres, and in a
given insect species the
number of
annuli generally is not as consistent...
-
resulting in the loss of the
first two
annuli. It is
therefore necessary to
determine an
average width for the
first two
annuli by
examining the fins from juvenile...
-
Unsolved problem in mathematics: Does
every Jordan curve have an
inscribed square? (more
unsolved problems in mathematics) The
inscribed square problem...
- (drilling mud) by the
shale shakers. In a
completed well,
there may be many
annuli. The 'A'
annulus is the void
between the
production tubing and the smallest...
-
Black dots
represent zeros of g(z).
Black annuli represent poles. The
boundary of the open set U is
given by the
dashed line. Note that all
poles are exterior...
-
Astronomical rings (Latin:
annuli astronomici), also
known as Gemma's rings, are an
early astronomical instrument. The
instrument consists of
three rings...
- mouth. C,
Okefenokee Swamp, GA (Pfl-2).
Single star, male gonopore;
double star,
female gonopore,
three annuli posterior to male.
Scale bars, 1.0 mm....
- ring.
Annuli are
commonly found in
segmented animals such as
earthworms and leeches. The
bodies of
these annelids are
externally marked by
annuli that...