(n.) A number of things resembling one another, or belonging together; a set; as, a pair or flight of stairs. "A pair of beads." Chaucer. Beau. & Fl. "Four pair of stairs." Macaulay. [Now mostly or quite disused, except as to stairs.]
(n.) Two things of a kind, similar in form, suited to each other, and intended to be used together; as, a pair of gloves or stockings; a pair of shoes.
(n.) Two of a sort; a span; a yoke; a couple; a brace; as, a pair of horses; a pair of oxen.
(n.) A married couple; a man and wife.
(n.) A single thing, composed of two pieces fitted to each other and used together; as, a pair of scissors; a pair of tongs; a pair of bellows.
(n.) Two members of opposite parties or opinion, as in a parliamentary body, who mutually agree not to vote on a given question, or on issues of a party nature during a specified time; as, there were two pairs on the final vote.
(n.) In a mechanism, two elements, or bodies, which are so applied to each other as to mutually constrain relative motion.
(v. i.) To be joined in paris; to couple; to mate, as for breeding.
(v. i.) To suit; to fit, as a counterpart.
(v. i.) Same as To pair off. See phrase below.
(v. t.) To unite in couples; to form a pair of; to bring together, as things which belong together, or which complement, or are adapted to one another.
(v. t.) To engage (one's self) with another of opposite opinions not to vote on a particular question or class of questions.
(v. t.) To impair.
Example Sentences:
(1) The distance between the end of fic and the start of pabA was 31 base pairs.
(2) At the fepB operator, a 31 base-pair Fur-protected region was identified, corresponding to positions -19 to +12 with respect to the transcriptional start site.
(3) Mapping of the cross-link position between U2 and U6 RNAs is consistent with base-pairing between the 5' domain of U2 and the 3' end of U6 RNA.
(4) This value is about 30 times higher than the association constant for guanine-cytosine base pair formation under the same experimental conditions.
(5) For related pairs, both the primes (first pictures) and targets (second pictures) varied in rated "typicality" (Rosch, 1975), being either typical or relatively atypical members of their primary superordinate category.
(6) Plasma renin activity (PRA) and aldosterone concentration were measured before and during submaximal exercise in 10 male monozygotic twin pairs who were discordant for smoking.
(7) Fifty-two pairs of canine femora were tested to failure in four-point bending.
(8) Other DNase I hypersensitive sites located adjacent to the S14 cap site at -65 to -265 base pairs (Hss-1) or upstream at -1.3 kb (Hss-2), -2.1 kb (Hss-3'), -5.3 kb (Hss-4), and -6.2 kb (Hss-5) remained unaffected by changes in S14 gene transcription.
(9) Delta roc, which extends from base pairs 41883 to 43825, overlaps the nin5 deletion, which extend from base pairs 40501 to 43306.
(10) In all cases, endocrine cells immunoreactive to only one of the paired antisera were detected except for anti-glucagon and anti-glucagon-like peptide 1, which always immunostained the same cells.
(11) Arterial-type flows produced a pair of vortex sinks downstream of the branching port.
(12) Benzaldehyde's in cherries and cherrystones and amaretto, so it's immediately a base to pair things with."
(13) The lengths and heights of the scalae tympani in ten pairs of serially sectioned temporal bones were measured by an adaptation of the serial section method of cochlear reconstruction.
(14) Paired tolbutamide and glucose infusions using a square wave technique demonstrated that although early phase insulin secretion is dimished in the fetus, this is not due to an absolute deficiency of stored insulin.
(15) The distribution of the amino acid pairs, i, i + 1 in alpha-helical configurations does not differ from the random pairing.
(16) Male Sprague Dawley rats either trained (T, N = 9) for 11 wk on a rodent treadmill, remained sedentary, and were fed ad libitum (S, N = 8) or remained sedentary and were food restricted (pair fed, PF, N = 8) so that final body weights were similar to T. After training, T had significantly higher red gastrocnemius muscle citrate synthase activity compared with S and PF.
(17) We propose that, for a GC base pair in B conformation, there are two amino proton exchangeable states--a cytosine amino proton exchangeable state and a guanine amino proton exchangeable state; both require the disruption of only the corresponding interbase H bond.
(18) Whole gastrocnemius muscles were incubated in Ringer's solution enriched with H2-17O; the paired contralateral gastrocnemius muscles were incubated in a similar solution enriched with deuterons, as well.
(19) The building block of cytokeratin IFs is a heterotypic tetramer, consisting of two type I and two type II polypeptides arranged in pairs of laterally aligned coiled coils.
(20) For example, stem pairing with a sequence other than wild-type resulted in normal protein binding in vitro but derepression of protein synthesis in vivo.
Stereoscope
Definition:
(n.) An optical instrument for giving to pictures the appearance of solid forms, as seen in nature. It combines in one, through a bending of the rays of light, two pictures, taken for the purpose from points of view a little way apart. It is furnished with two eyeglasses, and by refraction or reflection the pictures are superimposed, so as to appear as one to the observer.
Example Sentences:
(1) In 60 rhesus monkeys with experimental renovascular malignant arterial hypertension (25 one-kidney and 35 two-kidney model animals), we studied the so-called 'hard exudates' or white retinal deposits in detail (by ophthalmoscopy, and stereoscopic color fundus photography and fluorescein fundus angiography, on long-term follow-up).
(2) We performed a prospective study on 68 eyes of 68 patients to compare the vertical cup-disk ratio obtained with the video-ophthalmograph to that obtained with manual analysis of black-and-white stereoscopic photographs.
(3) To help overcome this problem, a stereoscopic slide-based auto-instructional program has been developed as a substitute for dissection.
(4) Stereoscopic observations clearly showed that the bacteria were pleomorphic, rod-shaped, arranged in a row or at an angle, and frequently showed septal formation.
(5) The structural changes can be directly observed by a stereoscopic microscope: a considerable decrease of the hydrophilic regions of the membrane is caused by the Ca2+ ions.
(6) Boyle, who on Sunday night received an outstanding contribution prize at the Empire awards, said he was not a fan of stereoscope on film and doubted it would survive.
(7) A rectoscope with a 40-mm diameter permits tumor resection under stereoscopic control in the gas-dilated rectal cavity.
(8) It renders images on a split screen to simulate a stereoscopic view for the wearer, much like 3D TVs and 3D spectacles in cinemas.
(9) We filled the macro- and microvascular beds with Microfil and made stereoscopic observations of cleared 0.5- to 1.0-cm-thick sections.
(10) An angiographic system capable of simultaneous biplane stereoscopic magnification cerebral angiography was evaluated.
(11) An important function of orientation sensitivity of simple cells may be the binocular alignment of contours in binocular fusion and stereoscopic vision.
(12) Retinopathy was documented by stereoscopic fundus photography.
(13) The observers estimated larger vertical cup-to-disc ratios when evaluating the same discs under stereoscopic conditions than under monoscopic conditions.
(14) Observers were to detect through a stereoscope a Gabor signal in patches of two-dimensional broadband gaussian noise surrounded by a frame of uniform noise.
(15) With the strabismic, the Single Oblique Mirror Stereoscope is used and the tests with it are enumerated.
(16) Further refinements in the equipment are expected: generation of stereo images with one injection, thus increasing procedure efficiency and patient safety; a video stereoscopic viewing unit; and the ability to obtain precise measurements via computer of depth, position, distance between, and true size of objects.
(17) Stereoscopic depth perception is demonstrated in the falcon, a non-mammalian with binocular vision.
(18) The system uses a simultaneous stereoscopic camera and a video camera to acquire images directly from the optic disc and from optic disc photographs, respectively.
(19) This rotation is believed to pose a problem with veridical stereoscopic localization.
(20) Software which permits an IBM AT and two IBM Professional Graphics Displays to be used to display high-quality three-dimensional space-filling stereoscopic images of macromolecules is described.