(a.) Not regular; not conforming to a law, method, or usage recognized as the general rule; not according to common form; not conformable to nature, to the rules of moral rectitude, or to established principles; not normal; unnatural; immethodical; unsymmetrical; erratic; no straight; not uniform; as, an irregular line; an irregular figure; an irregular verse; an irregular physician; an irregular proceeding; irregular motion; irregular conduct, etc. Cf. Regular.
(n.) One who is not regular; especially, a soldier not in regular service.
Example Sentences:
(1) Aggregation was more frequent in low-osmolal media: mainly rouleaux were formed in ioxaglate but irregular aggregates in non-ionic media.
(2) They were more irregularly curved and consisted of various substances.
(3) The results of the measurements permitted the identification of five main cytologic types, with regard to nuclear size, nuclear area dispersion and irregularity of nuclear profiles.
(4) A detailed stereochemical analysis of known protein structures has been made which shows that: (1) irregular regions of proteins consist of a limited number of standard structures formed by three, four of more residues; (2) an amino acid residue of a protein can adopt one of the six sterically allowed conformations designated here as alpha, alpha L, beta, gamma, delta, and epsilon.
(5) Endoscopy showed an irregular erosion of 4 by 2 cm, from which biopsies were taken.
(6) Aside from typical nuclear spheroids, irregularly shaped nuclei were frequently seen, associated with increased nuclear folds, transitional stages between nuclear folds and nuclear spheroids were also present.
(7) Although the level of ventilation is maintained constant during eating and drinking, the pattern of breathing becomes increasingly irregular.
(8) Numerous slender sarcotubules, originating from the A-band side terminal cisternae, extend obliquely or longitudinally and form oval or irregular shaped networks of various sizes in front of the A-band, then become continuous with the tiny mesh (fenestrated collar) in front of the H-band.
(9) What happened in the past was that if smugglers are sure that European boats are patrolling very close to the Libyan coast, then traffickers use this opportunity to advertise, and say to potential irregular migrants: ‘You will be sure to reach the European coast.
(10) In contrast, mean diameter of normal epicardial coronary artery tended to decrease and that of irregular epicardial coronary artery decreased significantly after intracoronary injection of acetylcholine.
(11) These findings are in agreement with the concept that irregular lesions represent ruptured atherosclerotic plaques and demonstrate that they usually originate from mildly occlusive smooth plaques.
(12) After 21 months, there appears to be no correlation between the amount of material adhering to the IUD and method complications (irregular and excessive bleeding) or method failure (pregnancy).
(13) The patient described in this report has the classic findings of Bardet-Biedl syndrome in conjunction with tibia vara and irregular physes of the lower extremities.
(14) After cessation her previously regular menstrual periods became very irregular and complete amenorrhea had lasted 4 months.
(15) Histochemical and electron-microscopic observations on a 30-month-old child with Hurler syndrome showed marked irregularities in chondrocyte orientation within the growth plate, along with disruption of the normal columnar architecture.
(16) The endocrine pattern and ovarian characteristics of 110 healthy adolescents with menstrual irregularities were investigated during the early follicular and premenstrual phases and were compared to those of 14 adolescents with regular menstrual cycles and 20 adults.
(17) Hypertrophy of the satellite cells with increase in the perineuronal intercellular spaces, often associated with irregular, scalloped nuclear and cell outlines, suggested that neuron shrinkage had occurred.
(18) Light microscopic examination of irregularly thickened white and black portions of abnormal scales demonstrated two distinctive populations of pigment-containing cells.
(19) In the second hypertrophied form [Type II], the endoplasmic reticulum is very prominent and occurs as a series of grossly dilated sacs of irregular shape.
(20) Disruption of the rhythmic activity of the inspiratory neurons and its replacement by a continuous and irregular discharge may lead to sustained contraction of inspiratory muscles and cessation of respiration.
Symmetry
Definition:
(n.) A due proportion of the several parts of a body to each other; adaptation of the form or dimensions of the several parts of a thing to each other; the union and conformity of the members of a work to the whole.
(n.) The law of likeness; similarity of structure; regularity in form and arrangement; orderly and similar distribution of parts, such that an animal may be divided into parts which are structurally symmetrical.
(n.) Equality in the number of parts of the successive circles in a flower.
(n.) Likeness in the form and size of floral organs of the same kind; regularity.
Example Sentences:
(1) By adjustment to the swaying movements of the horse, the child feels how to retain straightening alignment, symmetry and balance.
(2) Models with a C8-symmetry and D4-symmetry can be ruled out.
(3) This lack of symmetry in shape and magnitude may be due to non-sphericity of the skull over the temporal region or to variations in conductivities of intervening tissues.
(4) Subjects with high ocular-dominance scores (right- or left-dominant subjects) showed for the green stimulus asymmetric behavior, while subjects with low ocular-dominance scores showed a tendency toward symmetry in perception.
(5) The 3' end of the cell cycle regulated mRNA terminates immediately following the region of hyphenated dyad symmetry typical of most histone mRNAs, whereas the constitutively expressed mRNA has a 1798 nt non-translated trailer that contains the same region of hyphenated dyad symmetry but is polyadenylated.
(6) US clearly images the cartilaginous femoral head and enables accurate assessment of hip size, shape, and symmetry.
(7) Termination of sar RNA synthesis occurs after transcription of the first and second Ts of a TTTA sequence following a region of hyphenated dyad symmetry.
(8) In this paper, a CD study is reported on the reconstitution of horse heart myoglobin with protoheme XIII, a heme possessing true rotational symmetry about its alpha, gamma-meso axis.
(9) A significant symmetry (trochanteric-trochanteric or cervical-cervical) was found between the first and the second hip fractures (69 per cent).
(10) We discuss the role of symmetry operations in mode calculations and the relevance of these displacement vectors to the interpretation of linear dichroism measurements performed on the A- and B-DNA helix.
(11) This symmetry, with respect to the sign of the charge, indicates that discreteness-of-charge effects are not significant in determining the potential-sensitive phase partitioning of these probes in model membranes.
(12) In 14 patients with asymmetrical baseline VERs, hypercapnia caused improvement of symmetry in five, worsening in three, and no change in six.
(13) Using a symmetry argument it is shown that the critical internal pressure for the initiation of yielding of the envelope material has a non-uniform distribution and is significantly higher for the polar regions.
(14) (2) The four EF hands are arranged in two pairs with overall symmetry, 222.
(15) Three viruses (Ff, IKe, and If1) all have five-start helices with rotation angles of 36 degrees and axial translations of 16 A (Type I symmetry), and three other viruses (Pf1, Xf, and Pf3) all have one-start helices with rotation angles of approximately equal to 67 degrees and translations of approximately 3 A (Type II symmetry).
(16) This section was characterized by its axial rotation, deviation of its midpoint from the spinal axis, and area symmetry about the midpoint.
(17) These centres do not control the nature of the nystagmic movement that consists of a slow and a fast components, the combined movements of the right and left eyes, the direction of the nystagmus, the range and the nature marking the distribution of the maximal movement and of the most frequent movements during the action of the stimulus and the symmetry of the labyrinthine function.
(18) Taking advantage of structural symmetries may critically improve the convergence while refining the target molecule or its building blocks.
(19) As such, the finite size of the cellular membrane, as well as its precise symmetry, could not be incorporated into the previous studies.
(20) Similarly, the formation of spatial dissipative structures by coupling of a transport process with an interfacial reaction was investigated as a simple experimental example of symmetry breaking.