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.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

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]
Farlex Partner Medical Dictionary © Farlex 2012

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]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

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]
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
Rather, from the time of the accident, her condition began to spiral downward. As the trial judge noted, the patient's preexisting Alzhimer's Disease and other preexisting conditions make it impossible to prove her subsequent problems were solely the result of the accident which was the basis for the suit.
"If we ignore it, it could spiral downward and next, it's any physics students working with lasers--I mean, this could go anywhere.
As the stock market continues to spiral downward and investor losses mount, mutual fund fees have found a way to continue to rise.
In this way, the system continues to spiral downward toward the ultimate collapse I've predicted for a decade, and which is in its latter stages today.
When the tech bubble burst in Spring 2000 and the NASDAQ and NYSE began to spiral downward, millions of investors -- large and small -- were left holding the bag.
Critical Thinking: You might engage students in a discussion of why a country could spiral downward from a society of laws to a society of lawlessness.
While prices and demand have dried up, mills continue to search for a bottom, with operating rates continuing to spiral downward.
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.
Hunger questioned how anyone can expect the independent retailer to stay in the DSS business if prices continue to spiral downward.