Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- adjective Concave on both sides or surfaces.
from The Century Dictionary.
- Hollow or concave on both sides; doubly concave, as a lens. See
lens .
from the GNU version of the Collaborative International Dictionary of English.
- adjective Concave on both sides.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective Having both sides
concave .
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adjective concave on both sides
Etymologies
Sorry, no etymologies found.
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Examples
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Real red blood cells owe their astonishing agility to their "biconcave" or tyre-like shape, and to get the same kind of synthetic particles, Samir Mitragotri and his team got their inspiration from the way real red blood cells acquire their final shape in the body.
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Real red blood cells owe their astonishing agility to their "biconcave" or tyre-like shape.
Fight Aging! 2009
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Real red blood cells owe their astonishing agility to their "biconcave" or tyre-like shape, and to get the same kind of synthetic particles, Samir Mitragotri and his team got their inspiration from the way real red blood cells acquire their final shape in the body.
Gaea Times (by Simple Thoughts) Breaking News and incisive views 24/7 2009
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Again, the more ancient Crocodilia and Lacertilia have vertebrae with the articular facets of their centra flattened or biconcave, while the modern members of the same group have them procoelous.
Essays 2007
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‘Polypterus’, and presenting numerous important resemblances to the existing genus, which possesses biconcave vertebrae, are, for the most part, wholly devoid of ossified vertebral centra.
Essays 2007
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(Gr. [Greek: koilae], a hollow) or _angulus lunularis_, biconcave.
Encyclopaedia Britannica, 11th Edition, Volume 2, Part 1, Slice 1 Various
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The human blood-corpuscle is a non-nucleated, biconcave disc, having a diameter of about 1/3500 of an inch.
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Colored or red corpuscles (erythrocytes), when examined under the microscope, are seen to be circular disks, biconcave in profile.
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The disk has no nucleus, but, in consequence of its biconcave shape, presents, according to the alterations of focus under an ordinary high power, a central part, sometimes bright, sometimes dark, which has the appearance of a nucleus (Fig. 453, a).
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In reality, as everybody knows nowadays, these are biconcave disks, but owing to their peculiar figure it is easily possible to misinterpret the appearances they present when seen through a poor lens, and though Dr. Thomas Young and various other observers had come very near the truth regarding them, unanimity of opinion was possible only after the verdict of the perfected microscope was given.
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