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 ?
Then there are three Icarus teams, spiralling down in a mess of wax and feathers after flying too close to the sun: Bolton demotivated by the loss of their talismanic former boss, Reading, suffering second season syndrome, and Wigan, slipping back to last term's ineptitude after peaking too early.
Chesterfield v Blackpool YOU have to admire the job Roy McFarland has done at Chesterfield, but they will surely start spiralling down the table at some stage and Blackpool could cause an upset at 4-1 today.
And Geldof, 52, tells BBC1's Jeremy Vine tomorrow: 'Things were spiralling down so much that while her death wasn't the inevitable conclusion it was certainly a possibility.
This has sparked speculation in markets about takeovers and insolvency among insurers, sending stock markets spiralling down further.
Executioners moved up to fourth after collecting a white wash from Gigolo's, whilst second-placed Simpsons sent Red & White spiralling down the table.
Wids got the bonus point win after three straight defeats had sent them spiralling down the table.