biconcave


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biconcave
biconcave (left) and biconvex (right) lenses

bi·con·cave

 (bī′kŏn-kāv′, bī-kŏn′kāv′)
adj.
Concave on both sides or surfaces: a biconcave lens.

bi′con·cav′i·ty (-kăv′ĭ-tē) n.

biconcave

(baɪˈkɒnkeɪv; ˌbaɪkɒnˈkeɪv)
adj
(General Physics) (of a lens) having concave faces on both sides; concavo-concave
biconcavity n

bi•con•cave

(baɪˈkɒn keɪv, ˌbaɪ kɒnˈkeɪv)

adj.
concave on both sides.
[1825–35]
bi`con•cav′i•ty (-kənˈkæv ɪ ti) n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.biconcave - concave on both sidesbiconcave - concave on both sides    
concave - curving inward
Translations

bi·con·cave

a. bicóncavo-a, de dos superficies cóncavas.
References in periodicals archive ?
The TFC was biconcave shape in sagittal plane that was thick in the periphery and thin in the central portion [Figure 5].
17) Nearly half the stability of the joint is conferred by its biconcave nature.
The erythrocytes membrane did not maintain its biconcave shape after being treated with 0HFe and slight destruction of cell membrane was observed in Fig.
Description:Pollen grain, monocolpate, amb oblong to oval elliptical, extremities rounded or blunt, colpus distinct, extending full length of grain, colpus broad in middle with sharp ends, usually marked by parallel, exinal folds on sides, folds Plano convex or biconcave in some cases additional intexinal folds may accompany the major folds, exine laevigate, 1.
Normal biconcave red cells are pliable and can easily squeeze through the microcirculation, but owing to their elongated shape, sickle cells are not as flexible.
The TFC demonstrates low signal intensity on all sequences and a smooth, biconcave morphology, attaching to the hyaline cartilage of the radius at one margin, and to the ulnar styloid and fovea at the other margin as two low-signal bands (Figure 8).
Apoptotic changes in erythrocytes concern also: the chemical composition (decrease in content of glutathione and calcium cations and increase in content of methemoglobin, oxidized lipids and sodium cation), the structure of erythrocyte membrane (translocation of phosphatidylserine from the internal to the external monolayer, loss of peripheral membrane proteins, disturbance of lipid asymmetry) and morphological features (change of shape from biconcave to spherical, decrease in size through shrinking, changes of surface from smooth to that with bulge.
18 Krenkel ch: Axial anchor" screw (lag screw with biconcave washer) or Slanted screw" plate for osteosynthesis of fractures of mandibular condylar process.
Biconcave fractures occur when the central height of vertebral body is less than the anterior and posterior height and crush fractures occur when the total height of vertebral body is less than the height of the adjacent vertebral body.
Deviations from the regular biconcave shape of a red blood cell are a significant indicator of blood-related diseases, whether they result from genetic abnormalities, from infectious agents, or simply from a chemical imbalance.
This cast considerable doubt over the veracity of the use of silver cones in curved canals because of the impossibility of the solid silver cone filling the biconcave shape.