papilla constrictor muscle of iris diaphragm
Annular means like a ring, or round in shape. Several things in dermatology cause annular rashes.
An annular zone is a ring of fibres on the stem of a mushroom that is not well enough defined to be an annulus.
An annular eclipse is a solar eclipse in which the thin outer disc of the sun can be seen as a ring around the moon.
Ring finger
According to the following website:http://www.interfacebus.com/glossary-of-terms-minimum-annular-ring.htmlMinimum Annular RingThe minimum annular ring on a plated thur-hole is the minimum amount of copper (at the narrowest point) between the hole and the edge of the pad after plating of the finished hole. MIL-STD-275E and IPC class 3 calls for a minimum annular ring of 0.05mm (0.002") edge of hole to edge of pad. MIL-STD-275E also calls out .005 inches for via to trace distance. Minimum Annular Ring; PWB Internal ViaBoth diagrams indicate minimum annular ring measured from the outside ring of the pad and to the inside diameter of the plated thru-hole for an external pad [below], or to the center of the plated via for an internal pad [above].Minimum Annular Ring; PWB External PadMinimum Annular Ring applies regardless of the shape of the PCB pad. The next page shows two examples of different pad shapes.More Printed Wiring Board Terms
This type of eclipse is called an "annular eclipse" and the ring is an "annulus".
An annular eclipse occurs when the Sun and Moon are perfectly aligned, but the apparent size of the Moon is smaller, creating a ring of sunlight around the Moon. For example, "We traveled to witness the annular eclipse, where the Moon appeared as a ring of fire in the sky."
It describes someting ring-shaped (annular).
There's a slit in the back of the ring that holds the vertebral disk.
This is seen during an "annular eclipse".
You would most likely use your annular (ring) finger for wearing a ring on the fourth finger of your left hand in many cultures.
An annular eclipse occurs when the moon is near apogee (farthest from Earth) in its orbit and appears smaller than the sun, resulting in a ring of sunlight around the moon. Since the moon's orbit is not perfectly circular, its distance from Earth varies, and annular eclipses are rarer than total or partial eclipses.