(n.) A plane figure having many angles, and consequently many sides; esp., one whose perimeter consists of more than four sides; any figure having many angles.
Example Sentences:
(1) Gap junctions were of different sizes and frequently composed of a small number of connexons organized in polygonal aggregates or linear arrays.
(2) The isolated outer sheath was observed as a triple-layered, closed vesicle carrying a polygonal array by electron microscopy.
(3) Electron microscopically, the tumor cell nuclei were oval or polygonal and sometimes slightly invaginated, with a few prominent nucleoli.
(4) Delimitation of the pathological process in the lung is characterized by an increase in the number of T- and B-lymphocytes and considerable predominance of polygonally shaped cells with cytoplasmic outgrowths of different lengths and their subsequent replacement by a cell form transitory between T- and B-lymphocytes.
(5) At day 12-15, some nodules consisting of polygonal cells were formed in all culture conditions, and these nodules were mineralized 2-3 days later.
(6) The majority of the choline acetyltransferase-immunoreactive neurons had fusiform, oval, or polygonal somata with somatic diameters greater than 20 microns and contained deeply invaginated nuclei surrounded by copious cytoplasm.
(7) One type of cells had polygonal morphology, showed density-dependent contact inhibition at confluence in vitro, showed lectin-binding characteristics of endothelium (but only moderate positivity for factor VIII antigen), demonstrated induction of gamma-glutamyl transpeptidase when exposed to astrocyte-conditioned media, and responded to insulin by a pronounced increase in DNA synthesis.
(8) The first type included large multipolar neurons with triangular or polygonal perikarya and typically 3-5 dendrites emerging from the poles of each cell.
(9) Type II neurons had multipolar or polygonal cell bodies, which measured an average 31 micrometer by 43 micrometer and emitted four to seven primary dendrites.
(10) "En face" views of the epithelial cells showed capping protein distributed in a polygonal pattern coincident with cell boundaries in intestinal epithelium, sensory epithelium of the cochlea, and the pigmented epithelium of the retina and at regions of cell-cell contact between chick embryo kidney cells in culture.
(11) Polygonal, foamy macrophages were found in 12 cases.
(12) The subcultured HNC and ADPKD cells retained characteristic epithelial polygonal and elongated shape and positive immunofluorescent staining for cytokeratin.
(13) The slightly prominent apices of the superficial epithelial cells are more or less polygonal in shape and covered with short microvilli among which small granules as possible morphological expression of a secretory activity are detectable.
(14) Initially, they grew as individual polygonal cells, tending to form tight confluent monolayers with poorly defined intercellular boundaries.
(15) A 3rd type displayed a polygonal outline and increased cytoplasm.
(16) While the arteries show a long stretched spinle or lancet like form they change over blunt, oval, triangular or rhomboid forms into polygonal cells with spiked border lines at the venules.
(17) Also PMA was found to cause a profound change in astrocyte morphology; cells were converted from flat, polygonal, undifferentiated cells to process-bearing cells.
(18) On these substrata, cultured astrocytes changed their shape from flat and polygonal to stellate in the absence of hormones or growth factor supplements.
(19) The cells have a spindle, round or polygonal shape with neoplastic and pleomorphic features that grew in multilayers without contact inhibition.
(20) The rate constant for clearance as described in the paper represents a non-invasive method for rapid evaluation of the uptake capacity of the liver and, in particular, with regard to the polygonal cells of the liver parenchyma when IDA derivatives are employed.
Quadrangle
Definition:
(n.) A plane figure having four angles, and consequently four sides; any figure having four angles.
(n.) A square or quadrangular space or inclosure, such a space or court surrounded by buildings, esp. such a court in a college or public school in England.
Example Sentences:
(1) zygapophysiales structurally represent a force locked, kinematically contrained four-bar-chain (link quadrangle).
(2) This investigation examined how subjects perceived and localized the centers of irregular quadrangles.
(3) Chile will attack during their last-16 match against Brazil in Belo Horizonte because not to do so would be to ignore their own most obvious asset, that supremely mobile midfield-into-attack quadrangle.
(4) Based on intraoperative TEE findings, corrective procedures included quadrangle resection posterior leaflet with Carpentier ring in four, chordal shortening and chordal transfer anterior leaflet in four, flexible Duran ring for annular dilatation in two, closure of all atrial septal defects (ASD) with pericardial patch in secundum and sinus venosis type (ligation of small anomalous vein in one), and Dacron patch in primum type, myomectomy for HOC and reconstruction of the tricuspid annulus with Duran ring in Ebstein's anomaly.
(5) Biomechanical analysis of the stomatognathic system yields that the linkage between posterior and anterior guidance can be modelled by a link quadrangle (throttle crank) with closed linkage.
(6) The vast quadrangle at the centre of a sprawling complex of ministerial offices in Delhi has become a rubbish dump for broken furniture, discarded water coolers, broken air conditioners, abandoned telephones and large bags of discarded paper.
(7) On the basis of some more specific findings, we suggest that it is not as much the number of correlation quadrangles that determines the saliency of a regularity as it is the degree to which they facilitate or "bootstrap" each other.
(8) Misjudgement of orientation is demonstrated in drawings of tilted quadrangles with parallel diagonals.
(9) The superior tumors are characterized by the angle between the 2nd 3rd SOV segments not exceeding 100 degrees and by the quadrangle surface of 419 mm2 in average.
(10) Quadrangles with parallel LS-axes were systematically judged as differently tilted according to the difference in the orientation of their axes of balance.
(11) The sale, to Quadrangle Capital Partners, marks a winding down of Dennis's decade-long publishing foray into the US, which started with the launch of Maxim in 1997.
(12) In 2007 Dennis Publishing sold its US magazine interests including Maxim, Stuff and Blender to private equity partners Quadrangle Capital Partners, who own Alpha Media , for a price reported at the time to be about $240m (£121m).
(13) On Saxon Square, a pristine quadrangle of shops and cafes at the northern edge of town, I meet Dee and Graham Snape, 68 and 71 respectively, having coffee in the sunshine.
(14) Gradually the dramatic triangle begins to emerge – or is it a quadrangle?
(15) This mechanism can approximately be replaced by a link quadrangle and mapped by a standard gear.
(16) In addition to the first-order regularities of orientational uniformity and midpoint collinearity (Jenkins, 1983), bilateral symmetry (BS) gives rise to second-order relations between two pairs of symmetric elements (represented by correlation quadrangles).
(17) Judgements were also influenced by the orientation of an 'axis of balance', which ran through the centre of gravity and the lowermost apex of the quadrangle.
(18) The federal government has authorized an additional 9m reais ($2.36m) to the mines ministry for an audit of dams in the so-called iron quadrangle, the heavily mined region in Minas Gerais where the Samarco mine operates.
(19) In well-functioning families, this tetrad or quadrangle is wide-spread in the first pair of siblings in the family and tends to be more common in same-sex pairs, suggesting that sibling deidentification is designed to mitigate the relatively intense sibling rivalry characteristic of these pairs and hence to maintain family harmony.
(20) The main characteristic determining estimated orientation of the quadrangles was the axis from which the sum of the squared distances to each point of the figure was minimal (the LS-axis).