(v. t. & i.) To gather into small folds or wrinkles; to contract into ridges and furrows; to corrugate; -- often with up; as, to pucker up the mouth.
(n.) A fold; a wrinkle; a collection of folds.
(n.) A state of perplexity or anxiety; confusion; bother; agitation.
Example Sentences:
(1) As in the protein sample, a tendency for the cis-proline residues to have the DOWN pucker was observed, but the effect was less pronounced.
(2) The ultrastructural findings of the macular pucker removed by vitreoretinal surgery are demonstrated.
(3) Sugar puckers and proton distances are very sensitive criteria to monitor molecular dynamics.
(4) Intranucleotide proton-proton distances combined with the knowledge of sugar puckers have been used to fix the glycosidic bond torsion angle (chi).
(5) High proliferative activities were found in 4 of 5 PVR membranes, in 9 of 14 PDR membranes, in 6 of 11 recurrent membranes after intraocular silicone oil tamponade, and in 2 of 6 macular pucker membranes.
(6) No "flips" to the opposite puckering for this ring were found in the simulations starting from the global minimum, although such a transition was observed for a trajectory initiated with one of the higher local minimum energy conformations.
(7) Thus, flexibility in psi as well as in omega and omega, and in the sugar pucker is indicated.
(8) These facts suggest that astrocytes play an important role in preretinal membrane formation in macular pucker.
(9) The free duplex adopts a regular right-handed B-type conformation in which all glycosidic bond angles are anti and all sugar puckers lie in the C2'-endo range.
(10) All cases occurred in eyes with existing retinal holes or tears, including eight cases of macular pucker after previous retinal detachment.
(11) The conformations of the terminal residues of helix I, which corresponds to bases (-1)-11 and 108-120 of native 5S RNA, are less well-determined, and their sugar puckers are intermediate between C2' and C3'-endo, on average.
(12) Different ester substituents affect 1,4-dihydropyridine ring puckering to a small extent in most cases.
(13) Scalar couplings from correlated experiments and interproton distances from NOESY experiments at short mixing times have been used to determine glycosidic angles, sugar puckers, and other conformational features.
(14) There appeared to be a possibility that this muscular thickening might give rise to the rectosigmoidal mucosal puckering often seen through a sigmoidoscope.
(15) Intranucleotide NOEs from the sugar protons H1', H2', and H3' to the base protons were used to determine the conformation of each nucleotide (puckers and glycosidic torsion angles).
(16) The most flexible conformational angles in the structure are the glycosidic angle and the sugar pucker.
(17) Of these, 89% of the cis-proline residues exhibit the DOWN pucker, while the trans-proline residues, on average, are about evenly distributed between the two forms.
(18) The folding of the polynucleotide chain is accomplished either solely by rotations around the P-O bonds or in concert with rotations around the nucleotide C4'-C5' bond with or without changes in the sugar ring pucker.
(19) Postoperative proliferative vitreoretinopathy occurred in six eyes (10%) and macular pucker in two (3%).
(20) The glycosidic torsional angle, chiCN = -28.4 degrees, is in the anti region; the sugar pucker is C(2')exo-C(3')endo in a nearly pure 32H twist; and the conformation of C(4')-C(5') is gauche-gauche.
Sucker
Definition:
(n.) One who, or that which, sucks; esp., one of the organs by which certain animals, as the octopus and remora, adhere to other bodies.
(n.) A suckling; a sucking animal.
(n.) The embolus, or bucket, of a pump; also, the valve of a pump basket.
(n.) A pipe through which anything is drawn.
(n.) A small piece of leather, usually round, having a string attached to the center, which, when saturated with water and pressed upon a stone or other body having a smooth surface, adheres, by reason of the atmospheric pressure, with such force as to enable a considerable weight to be thus lifted by the string; -- used by children as a plaything.
(n.) A shoot from the roots or lower part of the stem of a plant; -- so called, perhaps, from diverting nourishment from the body of the plant.
(n.) Any one of numerous species of North American fresh-water cyprinoid fishes of the family Catostomidae; so called because the lips are protrusile. The flesh is coarse, and they are of little value as food. The most common species of the Eastern United States are the northern sucker (Catostomus Commersoni), the white sucker (C. teres), the hog sucker (C. nigricans), and the chub, or sweet sucker (Erimyzon sucetta). Some of the large Western species are called buffalo fish, red horse, black horse, and suckerel.
(n.) The remora.
(n.) The lumpfish.
(n.) The hagfish, or myxine.
(n.) A California food fish (Menticirrus undulatus) closely allied to the kingfish (a); -- called also bagre.
(n.) A parasite; a sponger. See def. 6, above.
(n.) A hard drinker; a soaker.
(n.) A greenhorn; one easily gulled.
(n.) A nickname applied to a native of Illinois.
(v. t.) To strip off the suckers or shoots from; to deprive of suckers; as, to sucker maize.
(v. i.) To form suckers; as, corn suckers abundantly.
Example Sentences:
(1) The papillae on the oral sucker were more abundant than those elsewhere.
(2) The sucker, covered with basal lamina, has a constant volume; its layer of muscles resists deformation and supports the stability of the arch.
(3) Lesions associated with Philometroides huronensis in the white sucker (Catostomus commersoni) of southern Ontario occurred during the spring (April-June) and were related to the development and release of first-stage larvae from the gravid nematode.
(4) Except for the suckers and excretory pores, the whole body surface of the metacercariae and the juveniles are covered with posteriorly pointing tegumental spines which are relatively denser in the forebody than in the hindbody.
(5) The event proper starts at 20.00, I'm still in the office and so, bearing in mind the traffic, expect this sucker to start moving at 19.30.
(6) For recording ECG in precardial leads sucker electrodes which have a limited application and short service life are employed most often.
(7) Anatomical components of afferent innervation in the rim of the octopus sucker are described.
(8) The new species differs from E. knoepffleri Combes, 1965 by greater sizes of the disc, median and marginal hooks and anterior suckers.
(9) As differentiation continued, rostellar hooks were formed by enlargement of single large (T1) microtriches, and normal spined microtriches were produced on the sucker region.
(10) Therefore, the Mesometridae which always have just a single sucker (monostomatous) have selected a new kind of compensatory adhesive structure.
(11) The number of the small dome-shaped papillae with a pit was about 30 around the oral sucker and that of the small ones with a smooth surface varied from 9 to 13 around the ventral sucker.
(12) To illustrate particular patterns of apical root resorption in primary maxillary central incisors of digital suckers, the radiographs of patients in a private pedodontic practice were evaluated.
(13) Six stages in development are distinguished: the 'lung form' (stage 1), attaining maximum numbers on day 5 post-infection; the 'closed-gut form' (stage 2) on day 14, characterized by the union of the gut caeca behind the ventral sucker; 'organogeny' (stage 3) on day 17, the male possessing one testis and a gynaecophoric canal and the female a narrow uterus; 'gametogeny' (stage 4) on day 26, with pairing, the male having four fully developed testes and the female an ovary; 'egg-shell formation' (stage 5) on day 35; 'oviposition' (stage 6) on day 37, with the female showing uterine eggs.
(14) White suckers, collected from lakes containing elevated levels of copper (12 micrograms liter-1) and zinc (250 micrograms liter-1), were evaluated for reproductive performance, growth and survival of the larvae, and tolerance of the larvae to waterborne copper.
(15) Critics who saw Budapest at the Berlin film festival, where it premiered this month, have called it "vibrant and imaginative" , "nimblefooted, witty" , and as a sucker for Anderson's stuff since his early days, I'd agree.
(16) ‘Nothin’ you can do about it, sucker.’ He didn’t like gettin’ hit with those punches.
(17) It is characterised by possessing spines at the basal margin of oral sucker; testes, postequatorial, subsymmetrical; vitellaria lateral to ovary in middle of hindbody, confluent in postovarian region and reaching to level of testes; ovary flattened; genital pore antero-lateral to acetabulum; seminal vesicle large and ejaculatory duct long.
(18) We are just sort of like suckers.” She goes so far as to lump centrist environmental leaders together with groups such as the Heartland Institute , which denies the existence of climate change.
(19) But Brief Encounter has survived such threats, because it is so well made, because Laura's voiceover narration is truly anguished and dreamy, because the music suckers all of us, and because Celia Johnson and Trevor Howard are perfect.
(20) At the interval it remained 1-0 so United needed to convert their chances to kill Palace off or they would be vulnerable to a sucker punch that Pardew’s side had delivered at Arsenal on Sunday .