What's the difference between flat and surface?

Flat


Definition:

  • (superl.) Having an even and horizontal surface, or nearly so, without prominences or depressions; level without inclination; plane.
  • (superl.) Lying at full length, or spread out, upon the ground; level with the ground or earth; prostrate; as, to lie flat on the ground; hence, fallen; laid low; ruined; destroyed.
  • (superl.) Wanting relief; destitute of variety; without points of prominence and striking interest.
  • (superl.) Tasteless; stale; vapid; insipid; dead; as, fruit or drink flat to the taste.
  • (superl.) Unanimated; dull; uninteresting; without point or spirit; monotonous; as, a flat speech or composition.
  • (superl.) Lacking liveliness of commercial exchange and dealings; depressed; dull; as, the market is flat.
  • (superl.) Clear; unmistakable; peremptory; absolute; positive; downright.
  • (superl.) Below the true pitch; hence, as applied to intervals, minor, or lower by a half step; as, a flat seventh; A flat.
  • (superl.) Not sharp or shrill; not acute; as, a flat sound.
  • (superl.) Sonant; vocal; -- applied to any one of the sonant or vocal consonants, as distinguished from a nonsonant (or sharp) consonant.
  • (adv.) In a flat manner; directly; flatly.
  • (adv.) Without allowance for accrued interest.
  • (n.) A level surface, without elevation, relief, or prominences; an extended plain; specifically, in the United States, a level tract along the along the banks of a river; as, the Mohawk Flats.
  • (n.) A level tract lying at little depth below the surface of water, or alternately covered and left bare by the tide; a shoal; a shallow; a strand.
  • (n.) Something broad and flat in form
  • (n.) A flat-bottomed boat, without keel, and of small draught.
  • (n.) A straw hat, broad-brimmed and low-crowned.
  • (n.) A car without a roof, the body of which is a platform without sides; a platform car.
  • (n.) A platform on wheel, upon which emblematic designs, etc., are carried in processions.
  • (n.) The flat part, or side, of anything; as, the broad side of a blade, as distinguished from its edge.
  • (n.) A floor, loft, or story in a building; especially, a floor of a house, which forms a complete residence in itself.
  • (n.) A horizontal vein or ore deposit auxiliary to a main vein; also, any horizontal portion of a vein not elsewhere horizontal.
  • (n.) A dull fellow; a simpleton; a numskull.
  • (n.) A character [/] before a note, indicating a tone which is a half step or semitone lower.
  • (n.) A homaloid space or extension.
  • (v. t.) To make flat; to flatten; to level.
  • (v. t.) To render dull, insipid, or spiritless; to depress.
  • (v. t.) To depress in tone, as a musical note; especially, to lower in pitch by half a tone.
  • (v. i.) To become flat, or flattened; to sink or fall to an even surface.
  • (v. i.) To fall form the pitch.

Example Sentences:

  • (1) Michael James, 52, from Tower Hamlets Three days after telling his landlord that the flat upstairs was a deathtrap, Michael James was handed an eviction notice.
  • (2) A tiny studio flat that has become a symbol of London's soaring property prices is to be investigated by planning, environmental health and fire safety authorities after the Guardian revealed details of its shoebox-like proportions.
  • (3) With the flat-fee system, drug charges are not recorded when the drug is dispensed by the pharmacy; data for charging doses are obtained directly from the MAR forms generated by the nursing staff.
  • (4) Taking into account the calculated volume and considering the triangular image as one face of the particle, it is suggested that eIF-3 has the shape of a flat triangular prism with a height of about 7 nm and the above-mentioned side-lengths.
  • (5) He gets Lyme disease , he dates indie girls and strippers; he lives in disused warehouses and crappy flats with weirded-out flatmates who want to set him on fire and buy the petrol to do so.
  • (6) The b-wave in the ERG was lacking and the EOG was flat.
  • (7) In north-west Copenhagen, among the quiet, graffiti-tagged streets of red-brick blocks and low-rise social housing bordering the multi-ethnic Nørrebro district, police continued to cordon off roads and search a flat near the spot where officers killed a man believed to be behind Denmark’s bloodiest attacks in over a decade.
  • (8) Distance running performance is slower on hilly race courses than flat courses even when the start and finish are at the same elevation, resulting in equal amounts of uphill and downhill running.
  • (9) In autumn, leaf-heaps composted themselves on sunken patios, and were shovelled up by irritated owners of basement flats.
  • (10) Here we present images of polydeoxyadenylate molecules aligned in parallel, with their bases lying flat on a surface of highly oriented pyrolytic graphite and with their charged phosphodiester backbones protruding upwards.
  • (11) All other broad-spectrum benzimidazole anthelmintics, regardless of substituent at the 2 position (methyl carbamate or thiazolyl group), are flat.
  • (12) We investigated the mechanism by which retinoic acid causes growth arrest and flat reversion of SSV-NRK, simian sarcoma virus-transformed normal rat kidney cells.
  • (13) When she speaks, it is in a quiet, clear voice that is middle-class but also flat and London-inflected enough to seem almost classless: it is the voice of the modern southern English professional.
  • (14) After about 3 weeks of culture, N-ethyl-N-nitrosourea-pretreated fetal rat brain cells showed focal proliferation of neural cells on an underlayer of flat, epithelioid cells.
  • (15) In order to determine an histological high-risk group, we chose cases with preneoplastic conditions (60 CAG, 10 biopsies of gastric remnants, 3 flat adenomas and 55 gastrectomies by cancer or ulcer).
  • (16) During inspiration, the velocity was greater and the shape of the flow profile throughout diastole tended to be flat.
  • (17) The following relationships were found: Round nuclei have higher rates of DNA synthesis than flat ones.
  • (18) The individual micelles are relatively flat, ring-shaped structures, the center offering space for one of the two bulky sugar chains of the saponins.
  • (19) Microinfusion of the selective 5-HT1A receptor agonist, 8-hydroxy-(di-N-propylamino)tetralin (8-OHDPAT), into the dorsal raphe nucleus (DRN) produced a marked behavioural hypoactivity and flat body posture.
  • (20) Don was racing the Dodge through the Bonneville Salt Flats , where Gary Gabelich had just (on 23 October) broken the land-speed record.

Surface


Definition:

  • (n.) The exterior part of anything that has length and breadth; one of the limits that bound a solid, esp. the upper face; superficies; the outside; as, the surface of the earth; the surface of a diamond; the surface of the body.
  • (n.) Hence, outward or external appearance.
  • (n.) A magnitude that has length and breadth without thickness; superficies; as, a plane surface; a spherical surface.
  • (n.) That part of the side which is terminated by the flank prolonged, and the angle of the nearest bastion.
  • (v. t.) To give a surface to; especially, to cause to have a smooth or plain surface; to make smooth or plain.
  • (v. t.) To work over the surface or soil of, as ground, in hunting for gold.

Example Sentences:

  • (1) The resulting dose distribution is displayed using traditional 2-dimensional displays or as an isodose surface composited with underlying anatomy and the target volume.
  • (2) Phospholipid methylation in human EGMs is distinctly different from that in rat EGMs (Hirata and Axelrod 1980) in that the human activity is not Mg++-dependent, and apparent methyltransferase I activity is located in the external membrane surface.
  • (3) To quantify the size of the lesion in mice, the area of the infarct on the brain surface was assessed planimetrically 48 h after MCA occlusion by transcardial perfusion of carbon black.
  • (4) Using monoclonal antibodies directed against the plasma membrane of Madin-Darby canine kidney (MDCK) cells, we demonstrated previously that a glycoprotein with an Mr = 23,000 (gp23) had a non-polarized cell surface distribution and was observed on both the apical and basolateral membranes (Ojakian, G. K., Romain, R. E., and Herz, R. E. (1987) Am.
  • (5) In the surface epithelial cells, the basolateral cell surface showed moderate enzymatic activity.
  • (6) Such an increase in antibody binding occurred simultaneously with an increase in the fluidity of surface lipid regions, as monitored by fluorescence depolarization of 1-(trimethylammoniophenyl)-6-phenyl-1,3,5-hexatriene.
  • (7) The role of Ca2+ in cell agglutination may be either to activate the cell-surface dextran receptor or to form specific intercellular Ca2+ bridges.
  • (8) The subcellular distribution of sialyltransferase and its product of action, sialic acid, was investigated in the undifferentiated cells of the rat intestinal crypts and compared with the pattern observed in the differentiated cells present in the surface epithelium.
  • (9) Even with hepatic lipase, phospholipid hydrolysis could not deplete VLDL and IDL of sufficient phospholipid molecules to account for the loss of surface phospholipid that accompanies triacylglycerol hydrolysis and decreasing core volume as LDL is formed (or for conversion of HDL2 to HDL3).
  • (10) A total of 555 caries lesions were registered on proximal surfaces, 49.1% being primary lesions in the enamel, 21.4% primary lesions into the dentin and 29.5% secondary lesions.
  • (11) Contact angles of Silafocon A and PMMA were relatively uninfluenced by front surface radii between 7.7 and 8.85 and 7.3 to 8.8 mm, respectively.
  • (12) These cells contained organelles characteristic of the maturation stage ameloblast and often extended to the enamel surface, suggesting a possible origin from the ameloblast layer.
  • (13) Together these observations suggest that cytotactin is an endogenous cell surface modulatory protein and provide a possible mechanism whereby cytotactin may contribute to pattern formation during development, regeneration, tumorigenesis, and wound healing.
  • (14) Our Ph1-positive ALL revealed B-cell lineage leukemia, since their surface phenotype were Ia+ and CD10+ and they have rearranged immunoglobulin JH genes.
  • (15) The complete nucleotide sequence of the gene for a cell surface protein antigen (SpaA) of Streptococcus sobrinus MT3791 (serotype g) was determined.
  • (16) To investigate the mechanism of enhanced responsiveness of cholesterol-enriched human platelets, we compared stimulation by surface-membrane-receptor (thrombin) and post-receptor (AlF4-) G-protein-directed pathways.
  • (17) Lysis of EAC4b,3b cellular intermediates formed to contain a low surface amount of C3b was more inhibited than was lysis of cells formed with a standard amount of C3b on the surface.
  • (18) After either 5 or 10 days of culture with both cytokines, intense immunofluorescent staining for Ia could be identified on the surface of greater than 80-90% of the viable islet cells.
  • (19) Within the capillary-perfused mucosa and muscularis (between 50 and 2000 microns from the urothelial surface), concentrations decreased by 50% for each 500-microns distance.
  • (20) Displacement of the surface of the cornea of bovine eyes after disruption of intact structures was investigated by means of holographic interferometry.