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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 ?
We are told, for instance, that the double first met Camilla shortly after the death of her cousin.
Also methodically parodic and skillfully disguised, Larsen's revolt, unlike Johnson's or Schuyler's, however, is expressed through her protagonists' search for a sense of the self and through Larsen's embodiment of an alternative identity for African American women, an identity of "double double consciousness.
We mixed the "Wildcat" with our base double wing 25 times, and it produced 117 yards enabling us to score a huge upset on the opponents' home field.
The court based its finding in large measure on two recent Supreme Court decisions, one involving double jeopardy and the other involving the Excessive Fines Clause of the eighth amendment.
If a taxpayers suffers double taxation, it may solicit competent authority assistance.
In contrast, a double toggle, with its two sets of links, applies the load at two locations near the outside of the platen.
Displayed as The Shadow in the retrospective, this 1981 work appears in Double Game under the title The Detective.
The earliest report Wahl has seen that mentions double minute chromosomes was published in the 1960s.
Whenever the opponent uses a high post, we double with the high-post defender, as shown in Diags.
Hutchings, a graduate student at Harvard University, proved a conjecture that narrowed the candidates to the standard double bubble and the torus bubble.
When a grocery store offers double credit, that comes out of its own pocket.
You may note the similarities between the Single Wing and Double Wing in the "Power" off tackle (Diags.