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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 ?
Notre Dame 20, Birmingham 5: John Puccinelli homered and doubled, Jon Horwirz had four hits, including a triple and double, and Steven Viramontes also tripled as the Knights (4-0) beat the Patriots (2-2) and clinched a title-game berth with an 18-hit offense.
Notre Dame 5, Thousand Oaks 3: Jon Horvitz and Jonathan Brewster doubled in a 12-hit attack by the visiting Knights (2-0), who won with three runs in the top of the eighth inning after the Lancers (1-1) tied the game with a run in the seventh.
Angel Jaime Monge's sentence for his 1995 conviction was doubled because his marijuana conviction was deemed a ``second strike'' - he had been convicted of assault with a deadly weapon in 1992.
Dennis Konrady (Pepperdine) homered and doubled with two RBI for Single-A Kinston.