What's the difference between layer and ply?

Layer


Definition:

  • (n.) One who, or that which, lays.
  • (n.) That which is laid; a stratum; a bed; one thickness, course, or fold laid over another; as, a layer of clay or of sand in the earth; a layer of bricks, or of plaster; the layers of an onion.
  • (n.) A shoot or twig of a plant, not detached from the stock, laid under ground for growth or propagation.
  • (n.) An artificial oyster bed.

Example Sentences:

  • (1) By 24 hr, rough endoplasmic reticulum in thecal cells increased from 4.2 to 7% of cell volume, while the amount in granulosa cells increased from less than 3.5% to more than 10%; the quantity remained relatively constant in the theca but declined to prestimulation values in the granulosa layer.
  • (2) 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.
  • (3) None of the other soft tissue layers-ameloblasts, stratum intermedium or dental follicle--immunostain for TGF-beta 1.
  • (4) Adding a layer of private pensions, it was thought, does not involve Government mechanisms and keeps the money in the private sector.
  • (5) Intraepidermal clefting starts at the junction between the basal and epidermal layers, and later involves all of the levels of the stratum spinosum.
  • (6) These data suggest that basophilic cell function in the superficial mucous layer in the nose is of greater significance in the development of nasal symptoms in response to nasal allergy than either mucociliary activity or nasal mucosal hypersensitivity to histamine.
  • (7) Likewise, they had little or no effects on the fluorescence anisotropy of TMA-DPH, which is also thought to be located in the interfacial region of the lipid bilayer, either when the probe was located in the outer layer of the plasma membrane or when the probe was located in the inner membrane compartment.
  • (8) While the heaviest anterogradely labeled ascending projections were observed to the contralateral ventral posterolateral nucleus of the thalamus, pars oralis (VPLo), efferent projections were also observed to the contralateral ventrolateral thalamic nucleus (VLc) and central lateral (CL) nucleus of the thalamic intralaminar complex, magnocellular (and to a lesser extent parvicellular) red nucleus, nucleus of Darkschewitsch, zona incerta, nucleus of the posterior commissure, lateral intermediate layer and deep layer of the superior colliculus, dorsolateral periaqueductal gray, contralateral nucleus reticularis tegmenti pontis and basilar pontine nuclei (especially dorsal and peduncular), and dorsal (DAO) and medial (MAO) accessory olivary nuclei, ipsilateral lateral (external) cuneate nucleus (LCN) and lateral reticular nucleus (LRN), and to a lesser extent the caudal medial vestibular nucleus (MVN) and caudal nucleus prepositus hypoglossi (NPH), and dorsal medullary raphe.
  • (9) Separation of PL by thin-layer chromatography revealed a prevalence of phosphatidylcholine followed by phosphatidylethanolamine.
  • (10) Thin layers of carbon (20 microns) and vacuoles (30 microns) suggested a large temperature gradient along the tissue ablation front.
  • (11) In cat, DARPP-32-immunoreactive cell bodies identified as Müller cells were demonstrated in the inner nuclear layer (INL) with processes closely surrounding the cell soma of photoreceptors in the outer nuclear layer.
  • (12) Suspensions of isolated insect flight muscle thick filaments were embedded in layers of vitreous ice and visualized in the electron microscope under liquid nitrogen conditions.
  • (13) We demonstrated that while the protein was incorporated into the cell layer at 6, 24, 48, and 72 hr, a far greater amount was secreted into the media.
  • (14) From this proliferating layer, precursor cells migrate outwards to reach the developing neostriatum in a sequential fashion according to two gradients of histogenesis.
  • (15) In many areas there are additional indications of thalamic terminations in deeper layers.
  • (16) Their narrowed processes pass at a common site through the muscle layer and above this layer again slightly widen and project above the neighbouring tegument.
  • (17) One month after unilateral transection of the fimbria-fornix an almost complete lack of cholinergic fibers persists in all layers of the dorsal hippocampus and fascia dentata ipsilateral to the lesion when compared to the contralateral hippocampus or to unlesioned control rats.
  • (18) After methylene blue, the gradient in resting potential across the circular layer was greatly reduced or abolished.
  • (19) In contrast, boundary layer diffusion is operative in the release from the matrixes prepared by compression of physical mixtures.
  • (20) This hydrostatic pressure may well be the driving force for creating channels for acid and pepsin to cross the mucus layer covering the mucosal surface.

Ply


Definition:

  • (v. t.) To bend.
  • (v. t.) To lay on closely, or in folds; to work upon steadily, or with repeated acts; to press upon; to urge importunately; as, to ply one with questions, with solicitations, or with drink.
  • (v. t.) To employ diligently; to use steadily.
  • (v. t.) To practice or perform with diligence; to work at.
  • (v. i.) To bend; to yield.
  • (v. i.) To act, go, or work diligently and steadily; especially, to do something by repeated actions; to go back and forth; as, a steamer plies between certain ports.
  • (v. i.) To work to windward; to beat.
  • (v.) A fold; a plait; a turn or twist, as of a cord.
  • (v.) Bent; turn; direction; bias.

Example Sentences:

  • (1) The human alpha 2-plasmin inhibitor gene (PLI) was mapped by in situ hybridization using a genomic DNA probe which contained exons coding for the signal peptide and a portion of the mature protein.
  • (2) Both are alleged to have plied the Devon girl with drugs, raped her and left her unconscious to drown on Anjuna beach, metres from a bar in which the group had spent the evening drinking.
  • (3) This lovely coastal route also gives you an excuse to hop on the Skye ferry, which plies its way over the narrows to Kylerhea from the start of this walk.
  • (4) He plied his trade for 25 years on the pages of this newspaper, and for more than half a century on behalf of the BBC.
  • (5) Six years ago, officials dismissed as ridiculous allegations that he had shot a drunken Russian bear that had been plied with honey and vodka.
  • (6) The trend of compliance as a function of the reinforcement angle is discussed for an angle-ply composite of low compliance constituents, as well as the implications for stress-strain behaviour.
  • (7) Undertreatment for fear of drug toxicity, overtreatment by plying the patient with multiple drugs, and delay in treatment are equally destructive.
  • (8) Group 19 pneumococci all contained ply; the disease-isolated types of 19F and 19A appeared to show a higher specific hemolytic activity and yield than the nonpathogenic types, 19B and 19C.
  • (9) In addition, the periodontal variables of PlI, GI, probing depth and the patient's experience of gingival bleeding were recorded and compared between smoking and non-smoking patients.
  • (10) Nucleotide sequence analysis of the pelY gene disclosed an open reading frame of 1,623 base pairs (PLY).
  • (11) Samson d’Souza and Placido Carvalho were alleged to have plied Scarlett with drugs, raped her and left her unconscious on the beach, where she subsequently drowned.
  • (12) Prompted by interest in immunohistochemical reports of prolactin-like immunoreactivity (PLI) in the rat hypothalamus, we investigated and have reported that an immunoreactive and bioactive prolactin-like material can be extracted from the rat hypothalamus.
  • (13) The Plaque Index (PlI), Gingival Index (GI) and Retention Index (RI), the width of the keratinized gingiva, pocket probing depth (PD) and loss of probing attachment (LA) were recorded on four surfaces per tooth in the entire dentition of the subjects.
  • (14) The court heard the group had plied five victims with drink and drugs and “passed them around” for sex.
  • (15) When P2 is further fractioned on a discontinuous sucrose density gradient, approximately 66% of the P2-associated PLI was found in subfractions rich in synaptosomes and poor in myelin and mitochondria.
  • (16) Using a sensitive and specific radioimmunoassay for rat prolactin and a standardized procedure for subcellular fractionation of neuronal tissue, we have found that 90% of hypothalamic PLI is particulate-bound with only 10% remaining in the S4 or cytosolic fraction.
  • (17) About the same number of PLI neurons could be detected in the abdominal ganglia of larval and adult flies.
  • (18) The music and the image had been honed down in the interim – the gear to the archetypal indie look and the music to the almost bubblegum sound which they ply today.
  • (19) The proportions of B. gingivalis and T. denticola were significantly related to GI, PlI, BI and PD, those of B. forsythus and W. recta to GI, PlI and BI, E. corrodens to GI and PlI, and F. nucleatum to BI.
  • (20) Email all your questions and answers to knowledge@theguardian.com NEXT WEEK The UK players currently plying their trade at the most obscure overseas clubs.