lamella
lamella
| lamella | A thin, plate-like layer, middle lamella, the layer between the walls of two adjacent plant cells. (09 Oct 1997) |
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| lamella of bone | A concentric, circumferential, or interstitial lamella. (05 Mar 2000) |
| lamellar | 1. Arranged in thin plates or scales. Synonym: lamellate, lamellated. 2. Relating to lamellae. (05 Mar 2000) |
| lamellar bone | The normal type of adult mammalian bone, whether cancellous or compact, composed of parallel lamellae in the former and concentric lamellae in the latter; lamellar organization reflects a repeating pattern of collagen fibroarchitecture. (05 Mar 2000) |
| lamellar cataract | A cataract in which the opacity is limited to the cortex. Synonym: zonular cataract. (05 Mar 2000) |
| lamellar granule | A membrane-bound granule, 100 to 500 nm in diameter, located in the upper layers of the stratum spinosum of certain stratified squamous epithelia. Synonym: lamellar granule, membrane-coating granule, Odland body. (05 Mar 2000) |
| lamellar ichthyosis | A dry form of congenital ichthyosiform erythroderma, an autosomal recessive trait present at birth; characterised by large, coarse scales over most of the body with thickened palms and soles, and associated with ectropion; histologically, there is hyperkeratosis, a prominent granular layer in the epidermis, slight acanthosis, many mitotic figures, and normal or reduced epidermal cell turnover. See: collodion baby, harlequin foetus. (05 Mar 2000) |
| lamellar keratoplasty | Keratoplasty in which only the anterior layer of the cornea is used (not a tectonic keratoplasty). Synonym: lamellar keratoplasty, layered keratoplasty. (05 Mar 2000) |
| lamellar phase | <biochemistry> A lamellar organisation of phospholipids that are packed as a bilayer with hydrophobic acyl tails inwardly directed and polar head groups on the outside surfaces. It is this bilayer that forms the basis of membranes in cells, though in most cellular membranes a very substantial proportion of the area may be occupied by integral proteins. The triple layered appearance of membranes seen in electron microscopy is thought to arise because the osmium tetroxide binds to the polar regions leaving a central, unstained, hydrophobic region. (31 Dec 1997) |
| lamellate | Made up of thin plates or lamina. (09 Oct 1997) |
| lamellated corpuscles | Small oval bodies in the skin of the fingers, in the mesentery, tendons, and elsewhere, formed of concentric layers of connective tissue with a soft core in which the axon of a nerve fibre runs, splitting up into a number of fibrils that terminate in bulbous enlargements; they are sensitive to pressure. Synonym: corpuscula lamellosa, pacinian corpuscles, Vater's corpuscles, Vater-Pacini corpuscles. (05 Mar 2000) |
| lamellibranch | <zoology> One of the Lamellibranchia. Also used adjectively. Source: Websters Dictionary (01 Mar 1998) |
| lamellibranchiata | <zoology> A class of Mollusca including all those that have bivalve shells, as the clams, oysters, mussels, etc. They usually have two (rarely but one) flat, lamelliform gills on each side of the body. They have an imperfectly developed head, concealed within the shell, whence they are called Acephala. Synonym: Conchifera, and Pelecypoda. See Bivalve. Origin: NL. See lamella, and Branchia, Branchiate. Source: Websters Dictionary (01 Mar 1998) |
| lamellibranchiate | <zoology> Having lamellar gills; belonging to the Lamellibranchia. One of the Lamellibranchia. Source: Websters Dictionary (01 Mar 1998) |
| lamellicorn | <zoology> Having antennae terminating in a group of flat lamellae; said of certain coleopterous insects. Terminating in a group of flat lamellae; said of antennae. A lamellicorn insect. Origin: Lamella + L. Cornu a horn: cf. F. Lamellicorne. See Lamella. Source: Websters Dictionary (01 Mar 1998) |
| lamella |
gill: any of the radiating leaflike spore-producing structures on the underside of the cap of a mushroom or similar fungus a thin membrane that is one of the calcified layers that form bones thin plate
Ãâó: wordnet.princeton.edu/perl/webwn
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| lamellated bone |
one of the two types of bone composing the alveolar bone, with some lamellae roughly parallel with the marrow spaces and others forming haversian systems. Cf. bundle b.
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| lamellar bone |
the normal type of adult bone, organized in layers (lamellae), which may be parallel (cancellous bone) or concentrically arranged (compact bone).
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| lamellar cataract |
a concentric opacity, broad or narrow, usually consisting of powdery white dots, affecting one lamella or zonule of an otherwise clear lens. This is the most common type of congenital cataract, and causes include hypocalcemia, hypoglycemia, galactosemia, and rubella. Called also zonular c.
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| lamella |
(L. diminutive of lamina, a thin blade; pl: lamellae) A double-membrane structure, plate or vesicle that is formed by two membranes lying parallel to each other.
Ãâó: www.fao.org/docrep/003/X3910E/X3910E15.htm
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| lamel | thin plate |
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| lamel | a thin membrane that is one of the calcified layers that form bones |
| lamel | any of the radiating leaflike spore-producing structures on the underside of the cap of a mushroom or similar fungus |
| lamel | a mixture in which substances occur in distinct layers |
| lamel | with ovules on thin extensions of the placentae into a compound ovary |
| lamel | marine or freshwater mollusks having a soft body with platelike gills enclosed within two shells hinged together |
| lamel | bivalve |
| lamel | oysters |
| lamel | beetle having antennae with hard platelike terminal segments |
| lamel | scarabaeid beetles and stag beetles |
| lamel | in a weak and unconvincing manner |
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