spiral

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spiral

 [spi´ral]
1. winding like the thread of a screw; called also helical.
2. a winding structure; see also coil and helix.
Curschmann's s's coiled fibrils of mucin sometimes found in the sputum of patients with asthma. See also Laënnec's pearls.

spi·ral

(spī'răl),
1. Coiled; winding around a center like a watch spring; winding and ascending like a wire spring.
2. A structure in the shape of a coil.
[Mediev. L. spiralis, fr. G. speira, a coil]

spiral

/spi·ral/ (spi´ral)
1. helical; winding like the thread of a screw.
2. helix; a winding structure.

Curschmann's spirals  coiled mucinous fibrils sometimes found in the sputum in bronchial asthma.

spi·ral

(spī'răl)
1. Coiled; winding around a center like a watch spring; winding and ascending like a wire spring.
2. A structure in the shape of a coil.
[Mediev. L. spiralis, fr. G. speira, a coil]

spi·ral

(spī'răl)
1. Coiled; winding around a center like a watch spring; winding and ascending like a wire spring.
2. Structure in shape of a coil.
[Mediev. L. spiralis, fr. G. speira, a coil]

spiral

1. winding like the thread of a screw.
2. a structure curving around a central point or axis.

Curschmann's s's
spiral organ of Corti
see organ of Corti.
spiral penile deviation
a defect in bulls. See corkscrew penis.
spiral septum
the arterial partition between aorta and pulmonary trunk, formed by the fusion of the truncal, bulbar and aorticopulmonary septa of the great vessels attached to the embryonic heart.
spiral worm
Dispharynx nasuta. See synhimantusspiralis.
References in periodicals archive ?
In stark contrast, Westchester County figures showed availabilities continuing to spiral downward, especially in the White Plains CBD.
Treasury--which argues that, in the absence of tight money, weak currencies will spiral downward even more rapidly, rendering it impossible for those who borrowed in foreign currency to repay their debts.
His spiral downward is supposed to provide satirical yuks, but "Bad Money" changes tone more often than a cheap AM radio, undercutting both dark comedy and social observation, and a good cast never gets a chance to stretch in any one direction.
The loss of just one major retailer's business can cause a manufacturer's profits to plummet, its stock to spiral downward and investors to abandon ship.
As a result, an individual can quickly spiral downward, becoming distracted, depressed, and even suicidal.
Meanwhile, things were not as peachy with the other couple as things continued to spiral downward between Kourtney and Scott.
In an interview with a foreign new agency, Wong commented that ultrabook prices will start to spiral downward in the second quarter of 2012, when most of the devices will be built with Intel's newest processor, Ivy Bridge, which is developed specifically for ultrabook laptops and scheduled for launch early in the year.
In truth, all of this still remains fairly remote from the day-to-day concerns of the people of this ancient city, whose worries are concentrated on the high price of gasoline, and a fear that property values could spiral downward fairly quickly, as they appear to be doing in England.
The result will be a slow but steady spiral downward toward a government-run national health-care system.
The heroic interventions are likely to increase as populations of sturgeon species, precarious everywhere, continue to spiral downward.