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Etymology: L, duplus
twice as much in strength, size, or amount.


(dŭb′l) [L. duplus, twofold]
Duplicate, or combining two qualities.


two of them.

double burst stimulation
a technique of nerve stimulation in which two short tetanic stimuli are applied and the response pattern used to monitor neuromuscular blockade during anesthesia.
double cervix
see double cervix.
double diffusion precipitin test
double fleece
2 years' growth of wool.
double gee
double muscling
see myofiber hyperplasia.
double pregnancy
double reciprocal plot
a graphical technique for analyzing drug antagonisms by plotting the effect against the dose. Called also Lineweaver-Burk plot.
double scalp
palpable thinning of the cranial bones in young sheep on inadequate diet.
double-stranded (ds)
nucleic acid occurring as a two-strand helix.

Patient discussion about double

Q. what is the cause for double vision

A. Double vision, or diplopia, as it's called, may be due to many conditions, including disorders of the muscles of the eye (extra-ocular muscles) and the nerves controlling them, disorders of the eye ball (enlarged eyeball as in Graves' ), and sometimes disorders of vision.

Diplopia may manifest important conditions, so consulting a doctor (e.g. neurologist or ophthalmologist) may be wise.

You may read more here:

Q. I have fibromyalgia and am having terrible vision problems...double, blurred, feel off blance.Is this common?

A. Blurry vision is not a usual symptom in fibromyalgia. If you are experiencing this on a permenant basis you should see a doctor- either a neurologist or an ophthalmologist to rule out other vision conditions that might be causing this.

More discussions about double
References in periodicals archive ?
According to him, Double-Decker bus services with name of 'Sightseeing Lahore', is initiative of TDCP to promote tourism in city of Lahore.
He said that the number of double-decker buses being operated for promotion of tourism will soon be increased.
But in a city where summer temperatures can sneak over 50 degrees Celsius, the air-conditioned double-deckers offer an alternative to a taxi ride squeezed in with other passengers or one of the fleet of competing minibuses.
Gretel Gomez, commercial director for the state-run concern that handles transportation for tourists, said officials plan to add more double-decker buses by the end of the year.
COIn the second phase, double-deckers would be plying on DubaiCOs internal roads from early next year.
The new Aero King Highway Liner, the only Japanese-developed double-decker bus, is designed for businesspeople, university students and retired baby boomers to enjoy comfortable bus journeys on expressways linking large cities, the subsidiary of Germany's Daimler AG said.
Abdullah Yousuf Al Ali, Director of the Buses section at the Public Transport Department in the RTA, said 70 state-of-the-art double-decker buses would be running between Dubai and Sharjah from September, each of which will accommodate 90 passengers.
HarperScientific introduces SleeveWrak Double-Decker Rack, a two-tiered vertical storage unit for narrow web anilox and/or plate sleeves up to 30" in length.
Debt rating agency Standard & Poor's said overnight it might cut its rating on EADS on the back of the profit warning and the delay, due mainly to problems installing wiring in the USD$300 million double-decker.
One of the key elements in their recovery has been the development of their new Enviro 400 double-decker bus, unveiled last year.