pair


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pair

(pār),
Two objects considered together because of similarity, for a common purpose, or because of some attracting force between them.

pair

(par)
1. a combination of two related, similar, or identical entities or objects.
2. in cardiology, two successive premature beats, particularly two ventricular premature complexes.

base pair  either of the two pairs—guanine and cytosine, adenine and thymine —of purine-pyrimidine bases joined by hydrogen bonds that make up DNA.

pair

1 two corresponding items similar in form and function.
2 one object composed of two joined interdependent parts. See also base pair.

pair

(par)
Two of anything similar in shape, size, and conformation.

base pair

In the double-stranded helical arrangement of DNA, the complementary purine-pyrimidine nucleotide bases (adenine-thymidine or guanine-cytosine) that are linked by weak chemical bonds. The order of these base pairs encode the genetic information in each segment of DNA.

ion pair

Two particles of opposite charge, usually an electron and a proton.
References in classic literature ?
i) Pairs of opposites which fall under the category of relation are explained by a reference of the one to the other, the reference being indicated by the preposition 'of' or by some other preposition.
Two brides, elaborately dressed in white, with ribbons, laces, and pearls, and crowned with orange-blossoms whose satiny petals nodded beneath their veils, were surrounded by joyous families, and accompanied by their mothers, to whom they looked up, now and then, with eyes that were content and timid both; the faces of all the rest reflected happiness, and seemed to be invoking blessings on the youthful pairs.
Then I understand that on your arrival in London yesterday you went out at once and bought a pair of boots?
As I was almost upon it the thing retreated before me, but a sound from behind caused me to wheel in time to see three pairs of eyes rushing at me from the rear.
If your heart were too sensitive to bear the deaths of the loving pair, you had only to go on the succeeding afternoon to see them wedded, and set upon the way of a well-assured domestic felicity.
broke in the Saw-Horse; so a pair of green spectacles was quickly fastened over the bulging knots that served it for eyes.
A double-breasted jacket of some dark frieze-like material fitted closely to her figure, while her straight blue skirt, untrimmed and ungathered, was cut so short that the lower curve of her finely-turned legs was plainly visible beneath it, terminating in a pair of broad, flat, low-heeled and square-toed shoes.
At this successful stage of affairs Polly found it impossible to resist the loan of a pair of gold bands for the wrists and Fanny's white fan with the little mirror in the middle.
She got worse and worse until she was sicker than ever the Hammond twins were, even the last pair.
These Cercopes (`Monkey-Men') were a pair of malignant dwarfs who went about the world mischief-making.
Rub as she could, she could make nothing more of it: she was in a little dark shop, leaning with her elbows on the counter, and opposite to her was an old Sheep, sitting in an arm-chair knitting, and every now and then leaving off to look at her through a great pair of spectacles.
Geppetto makes Pinocchio a new pair of feet, and sells his coat to buy him an A-B-C book