(n.) A kind of pillar; a cylindrical or polygonal support for a roof, ceiling, statue, etc., somewhat ornamented, and usually composed of base, shaft, and capital. See Order.
(n.) Anything resembling, in form or position, a column in architecture; an upright body or mass; a shaft or obelisk; as, a column of air, of water, of mercury, etc.; the Column Vendome; the spinal column.
(n.) A body of troops formed in ranks, one behind the other; -- contradistinguished from line. Compare Ploy, and Deploy.
(n.) A small army.
(n.) A number of ships so arranged as to follow one another in single or double file or in squadrons; -- in distinction from "line", where they are side by side.
(n.) A perpendicular set of lines, not extending across the page, and separated from other matter by a rule or blank space; as, a column in a newspaper.
(n.) A perpendicular line of figures.
(n.) The body formed by the union of the stamens in the Mallow family, or of the stamens and pistil in the orchids.
Example Sentences:
(1) Samples are hydrolyzed with Ba (OH)2, and the hydrolysate is passed through a Dowex-50 column to remove the salts and soluble carbohydrates.
(2) Previous attempts to purify this enzyme from the liquid endosperm of kernels of Zea mays (sweet corn) were not entirely successful owing to the lability of partially purified preparations during column chromatography.
(3) Detergent-solubilized HLA antigens were isolated from a human lymphoblastoid cell using an anti-beta2-microglobulin immunoaffinity column.
(4) Gel filtration of the 40,000 rpm supernatant fraction of a homogenate of rat cerebral cortex on a Sepharose 6B column yielded two fractions: fraction II with the "Ca(2+) plus Mg(2+)-dependent" phosphodiesterase activity and fraction III containing its modulator.
(5) Recovery of CV-3988 from plasma averaged 81.7% for the column procedure and 40% for the organic extraction.
(6) Release of 51Cr was apparently a function of immune thymus-derived lymphocytes (T cells) because it was abrogated by prior incubation of spleen cells with anti-thymus antiserum and complement but was undiminished by passage of spleen cells through nylon-wool columns.
(7) The sensitivity of an indirect fluorescent antibody (IFA) test (screening test) for the detection of antibodies to cytomegalovirus (CMV) was examined by using 128 serum specimens and quaternary aminoethyl (QAE)-Sephadex A50 column chromatography to separate IgM from IgG class antibodies.
(8) The ADAM derivative of carnitine was separated from decomposition products of the reagent and related compounds such as amino acid derivatives on a silica gel column eluted with methanol-5% aqueous SDS-phosphoric acid (990:10:1).
(9) A conventional liquid chromatograph with a low capacity column and a conductimetric detector is used to analyze aerosols of Cl-, Br-, NO-3 and SO=4 with good results.
(10) The deactivated columns had the residual silanols on the silica gel chemically inactivated to reduce the interaction with basic groups or analytes.
(11) Sephadex LH-20 column chromatography was used for the separation of the steroid prior to assay.
(12) We have investigated some of the factors which affect the retention times of these substances in reversed-phase HPLC on columns of 5-micron octadecylsilyl silica.
(13) The acetonitrile extract is concentrated and analyzed by HPLC, using a new polymer-based column, and detected by UV spectroscopy at 270 nm.
(14) Cytosolic zinc was eluted from a Sephadex G-75 column in the molecular weight region associated with metallothionein.
(15) The column eluate with the greatest RAST inhibition activity was associated with a protein peak having a molecular weight greater than 341 kilodaltons; however, all peaks demonstrated inhibitory activity.
(16) In the medium-size intermediate fibers, the number and diameter of the mitochondrial columns are intermediate between those of the red and white fibers.
(17) The bacterial-binding activity and mammalian receptor-binding activities in each of two samples co-chromatographed on a Remazol yellow GGL-Sepharose affinity column strongly indicated that the same immunoglobulin species reacts with both antigens.
(18) This enzyme was purified to homogeneity and exhibited an apparent molecular weight of 36,000 on sodium dodecyl sulfate gels and 180,000 on a TSK G-3000SW column in the presence of Triton X-100.
(19) The corresponding hydrides, mono-n-butyltin hydride, di-n-butyltin hydride, tri-n-butyltin hydride, monophenyltin hydride, diphenyltin hydride triphenyltin hydride, are detected by electron-capture gas chromatography after clean-up by silica gel column chromatography.
(20) Refolding was observed by injection of denatured protein into columns having isocratic concentrations in the transition and native base-line zones.
Columnar
Definition:
(a.) Formed in columns; having the form of a column or columns; like the shaft of a column.
Example Sentences:
(1) In normal seminal vesicle, the reaction product was apparently more abundant in columnar and basal cells than in other cell types.
(2) The observed staining indicated that the epithelium of the external auditory meatus has a pattern of keratin expression typical of epidermis in general and the epithelium of the middle ear resembles simple columnar epithelia.
(3) Results of the present study show that epithelial cells of ciliated columnar type covering vocal cords change remarkably to nonciliated squamous cells between prenatal and postnatal stages.
(4) A monoclonal antibody specific for columnar epithelium (RGE 53) gave a positive reaction in endocervical columnar cells and in some immature metaplastic cells but was negative in subcolumnar reserve cells, squamous (metaplastic) cells, dysplastic cells, and most cases of carcinoma in situ.
(5) 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.
(6) These patterns did not parallel the increase in microvillar height and number and basolateral interdigitations of the surface columnar cells, the structural correlates of lactase, and sodium-potassium-stimulated adenosine triphosphatase, respectively.
(7) There was no evidence of a "columnar" or "blob" pattern of any binding site within any of the laminae.
(8) The stratum superficiale consists during this phase of tall columnar cells.
(9) There was gradual regeneration of epithelium which showed slow maturation from flat non-ciliated epithelium to partially cuboidal and columnar epithelium with some cilia showing early differentiation to respiratory epithelium.
(10) The MNT was composed mainly of two cell types: small immature neuroblast-like cells and large columnar or cuboidal epithelial-like cells with or without melanin granules.
(11) The binding of 5 lectins (wheat germ, Dolichos bifluros, peanut, soybean, and Ulex europeus) was found to be independent of the stage of differentiation; "pre-differentiated" columnar cells which had prominent microvilli and no or few mucous secretory granules had identical staining patterns as well-differentiated goblet cells with large numbers of secretory granules.
(12) Photograph: Alamy The Devils Postpile, near Mammoth Lakes on the east side of Yosemite, looks as if it might have been created by some satanic sculptor, but really it's just one of the world's best examples of columnar basalt, a similar geological feature to the Giants Causeway in Northern Ireland.
(13) Barrett's esophagus is a condition in which the stratified squamous epithelium of the esophagus is replaced by metaplastic columnar epithelium that predisposes to the development of esophageal adenocarcinoma.
(14) There is a restructuring of the terminal vascular network of the pre-existing columnar epithelium in noninvasive cervical neoplasia which is caused by compression of the capillaries by the epithelial proliferation.
(15) Endometrial cells in suspension were stained with propidium iodide and a monoclonal antibody against a cytokeratin intermediate filament protein specific for glandular and columnar cells (RGE 53).
(16) The 9k-Da CaBP mRNA was observed mainly in the cytoplasm of the columnar cells and less frequently in the nucleus.
(17) Columnar epithelium in the nasal mucosa showed TK staining in all layers, KL1 staining on the apical side of epithelial cells and trace or negative staining in basal layer cells.
(18) There is no satisfactory biomarker yet available for predicting the likelihood of premalignant changes or carcinoma developing in Barrett's or columnar lined oesophagus.
(19) None of the control samples contained columnar cells and only 1 of 200 control samples contained metaplastic cells.
(20) The tumors were superficial, solitary masses consisting of cuboidal to columnar cells in tubuloglandular arrangement.