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 ?
While many companies throughout the country have been forced to lay off employees to address the spiraling down economy, the staffing industry has become the light at the end of the tunnel for many of them searching for temporary employees to take care of unfilled responsibilities, according to Tammi Heaton, senior vice president for PrideStaff.
In the '60s and '70s, Brown dreamed up near impossible tasks: signaling across Soho rooftops, spiraling down trees, and walking on the walls of the Whitney museum and down the side of a Soho building (performers were buckled into mountain gear to be able to walk horizontally).
It's up to you to decide whether or not a coin needs to be inserted from a gumball to come spiraling down.
A NASA photograph released Monday shows the Pegasus and X-43A spiraling down toward impact in the Pacific.
But even with the spiraling down ward of understanding among the segments of the queer community--and between us and the world at large--there is often hope.
Thinking you have more talents than you actually possess, and not hiring the right people to shore up the areas where you are weak, will send any business spiraling down.