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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 ?
6] This paradigm-shaking encounter with philosophical doubleness is the effect, I would argue, of Shakespearean paradox.
The thematics of doubleness and disguise is often set, then, through and against the line of Canadian history.
That knowledge erupts in the creation of a fictive self who cannot quite believe the terms of his own story and who offers it therefore with a parodic doubleness, glibness and unease.
This doubleness can also be read in the words Olsen speaks just prior to Helga's expressing her thoughts about the portrait: "|You have the warm impulsive nature of the women of Africa, but, my lovely, you have, I fear, the soul of a prostitute.
Terri's comments also lead us to consider the doubleness of education as she spoke about 'learning well [on the side of the individual] is always about reaching outside ourselves and our school into the community [on the side of the collective]'.
The rule of pertinence that "Basel" has set does not include the rule of non- contradiction, but that of juxtaposition and perspectival doubleness.
In the last and most powerful essay, "The Aquarium," Hereon eschews memory and doubleness as he confronts the prolonged illness and horrific death of his infant daughter, to whom he dedicated this collection.
I'm more fond of the doubleness in puns, especially flagrant puns, when the punster knows and registers the silliness of what he's just said, which good punsters do.
In Sophocles' Electra, there is a similar doubleness of emotion when the news of Orestes' fictional death simultaneously brings relief to Clytemnestra's fears and devastation to Electra's hopes:
After the authoritative text are 100 pages of criticism, character studies and other material that look at letters by Austen and consider the new style of the novel or the language of feeling that reflect on doubleness and refrain.
Their beauty "lay in their duality, in the charming doubleness .
The ground-breaking book that follows shows in illuminating detail how this 'ontological doubleness was a major attraction of the theatrical medium for Beckett and one he self-consciously exploited'.