What's the difference between flat and shelf?

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.

Shelf


Definition:

  • (v. i.) A flat tablet or ledge of any material set horizontally at a distance from the floor, to hold objects of use or ornament.
  • (v. i.) A sand bank in the sea, or a rock, or ledge of rocks, rendering the water shallow, and dangerous to ships.
  • (v. i.) A stratum lying in a very even manner; a flat, projecting layer of rock.
  • (v. i.) A piece of timber running the whole length of a vessel inside the timberheads.

Example Sentences:

  • (1) Since he was created, he has appeared at several robotic fairs across China, but spends most of his time in deep meditation on an office shelf in Longquan.
  • (2) Matches on the NDCD tape could be found for 80% of the items in the shelf stock sample and 69.5% of the items in the tape supplied by the wholesaler.
  • (3) The development of the hydrogelic occlusive device called the P-block is described including developmental steps of the design of the device as well as the experience gained concerning the hydrogel of the device, shelf life, animal and human toxicology, insertion techniques, analgesia, check-up for retention in situ, actual efficacy of the method, mode of action of the device, complication rates, patient acceptance, continuation rates, possible reversibility and future perspectives of the method.
  • (4) Formulation often has a dramatic effect on degradation of proteins during the freeze-drying process as well as impacting on the "shelf-life" stability of the freeze-dried product.
  • (5) The determination of potency or shelf life, impurity limit testing, and study of reaction mechanisms are considered as different aspects of drug stability.
  • (6) Patterns of HA distribution in anterior, posterior and presumptive soft palate were examined in the secondary palatal shelves of CD-1 mouse fetuses that were 30, 24 and 18 h prior to, and at the time of, shelf reorientation.
  • (7) Another pint of Guinness That evening we set out again, this time to O'Donoghue's in Fanore, a blue-painted stone pub set on the thin shelf of land between the sea and the great limestone mountain that is called the Burren.
  • (8) The absence of membrane proteins and chemical stability of SFH and phospholipids promises long shelf-life.
  • (9) So, they start to create these almost fictitious things they can sell, whether it’s a prime shelf [at the height a shopper is most likely to see] or a gondola end [the promotional buckets often found at the top of the aisle].
  • (10) Midline epithelial cells cease DNA synthesis 24-36 h before shelf elevation and contact, become active in the synthesis of cell surface glycoproteins, and subsequently manifest morphological signs of necrosis.
  • (11) It has been suggested that head posture changes, tongue movements and jaw opening reflexes are required to enable palatal shelf elevation to occur in normal cranio-facial development.
  • (12) Allografts are often freeze dried to increase shelf storage time and sterilized with ethylene oxide.
  • (13) The shelf procedure provides a buttress of bone for later reconstructive surgery such as cup or total hip arthroplasty.
  • (14) When tested in another task (recovering food pellets from a horizontal shelf accessible through a narrow slit below the ceiling of the test box) same rats displayed identical (45%) and opposite (15%) preference or were ambidextrous (40%).
  • (15) In one case this was a dense shelf-like mass of echoes extending downward from the basal portion of the interventricular septum toward the mid-portion of the anterior mitral leaflet with corresponding systolic anterior motion of the mitral leaflet.
  • (16) Eight brands of composite resin, including paste-paste, powder-liquid and light-activated systems, as well as three glass ionomer cements were evaluated over a period of twelve months with respect to shelf-life and suitability for use in a tropical environment.
  • (17) They know that you're just going to buy everything from Amazon now, so they've all cut their losses and stacked every shelf with a trillion different 50 Shades Of Grey knock-offs called things like Disciplined With Buttplugs and 20 Carat Strumpet.
  • (18) The shelf life of the solid phase presensitized with monoclonal antibodies was 4 mth at -15 degrees C. DEN prototype viruses were still identified after storage at -15 degrees C for 1 yr or at room temperature for 1 mth.
  • (19) There are now standard off-the-shelf products that provide the kind of digital production tools that simply didn't exist five years ago.
  • (20) It is concluded that the shelf life of iced whole cod can be predicted using this model but not that of vacuum-packed fillets because of the greater variability of bacterial activity in packaged fish.