lamella


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Related to lamella: lamella roof, lamellar bone

lamella

 [lah-mel´ah] (L.)
1. a thin scale or plate, as of bone.
2. a medicated disk or wafer to be inserted under the eyelid. adj., adj lamel´lar.
circumferential lamella one of the bony plates that underlie the periosteum and endosteum.
concentric lamella haversian lamella.
endosteal lamella one of the bony plates lying beneath the endosteum.
ground lamella interstitial lamella.
haversian lamella one of the concentric bony plates surrounding a haversian canal.
intermediate lamella (interstitial lamella) one of the bony plates that fill in between the haversian systems.

la·mel·la

, pl.

la·mel·lae

(lă-mel'ă, -mel'ē), [TA]
1. A thin sheet or layer (such as occurs in compact bone) or sublayer.
2. A preparation in the form of a medicated gelatin disc, used as a means of making local applications to the conjunctiva in place of solutions. Synonym(s): disc (2) [TA], discus [TA]
[L. dim. of lamina, plate, leaf]

lamella

(lə-mĕl′ə)
n. pl. la·mellas or la·mellae (-mĕl′ē)
1. A thin scale, plate, or layer of bone or tissue.
2. A medicated gelatin disk, used instead of a solution for application to the conjunctiva.
A thin leaf, plate, disk, wafer
Anatomy A concentric ring of matrix surrounding the central canal in an osteon of mature bone

la·mel·la

, pl. lamellae (lă-melă, -ē)
1. A thin sheet or layer, such as occurs in compact bone.
2. A preparation in the form of a medicated gelatin disc, used as a means of making local applications to the conjunctiva in place of solutions.
[L. dim. of lamina, plate, leaf]

lamella

Any thin plate, layer or sheet, as of bone.

lamella

or

thylakoid

a thin layer or plate. The term is used in the plural (lamellae) for:
  1. the sheet-like membranes that occur within the CHLOROPLAST, each of which consists of a pair of membranes with a narrow space between. Some 3000 occur in each chloroplast and their function is to maintain the CHLOROPHYLL molecules within the quantasomes in such a position as to receive the maximum amount of light.
  2. the gills of a basidiomycete fungus that radiate out from the stalk beneath the cap of the fruit and bear the spores.
  3. the layers in which the calcified matrix of bone occurs, each some 5 μm thick.

la·mel·la

, pl. lamellae (lă-melă, -lē)
1. [TA] Thin sheet or layer or sublayer.
2. Medicated gelatin disc used to make local applications to conjunctiva.
[L. dim. of lamina, plate, leaf]
References in periodicals archive ?
Anterior lamella rectangular, upper margin shallowly V-shaped; posterior lamella irregular quadrangular, upper margin arched; ductus bursa short, sclerotized; bursa copulatrix membranous.
Additionally, heros has the lateral edge of the lateral lamella straight, without abrupt widening subapically; in kruegeri, the lateral lamella is subapically wide (Mwabvu et al.
Exclusive facial porokeratosis: histopathologically showing fol-licular cornoid lamella. J Dermatol.
This year, thirty 3,600 [m.sup.2] lamella thickeners are being supplied to the Krivoi Rog iron ore mine in the Ukraine.
Histological sections of gills of Oreochromis niloticus specimens: a) Normal gill (1: primary lamella, 2: secondary lamella, H&E, 400x), b-d) Histopathological alterations.
According to this model, both stacks of primary lamellae and stacks of secondary lamellae coexist, and these stacks of secondary lamellas are located in some kind of amorphous pockets and grow during secondary crystallization, that is, at long crystallization times.
E: Pavement cell (CPV) in secondary lamella after exposure to urban lake water, observe reduction and detachment of cytoplasm (highlighted area).
Influence of donor lamella thickness on visual acuity after Descemet's stripping automated endothelial keratoplasty.
* Reconstruction of either anterior or posterior eyelid lamella not both.
Another technique that should be mentioned in the reconstruction of the posterior lamella is tarsomarginal grafts.
Various triggers for all forms of PK include infections, drugs, ultraviolet radiation, trauma and immunodeficiency resulting from organ transplantation, and/or hematologic malignancies (1-3), which result in abnormal clonal hyperproliferation of atypical keratinocytes with centrifugal spread, resulting in characteristic cornoid lamella in histology (1).
"The lamella section enhances the Reflux classifier's capacity, producing a more compact, higher efficient separation unit when compared to competing iron ore and mineral processing equipment such as spirals, up-current classifiers and teeter bed separators."