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discoidal

Definitions

  • WordNet 3.6
    • adj discoidal having a flat circular shape
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Webster's Revised Unabridged Dictionary
    • a Discoidal Disk-shaped; discoid.
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Century Dictionary and Cyclopedia
    • discoidal Same as discoid.
    • ***
Chambers's Twentieth Century Dictionary
    • adj Discoidal dis′koidal having the form of a disc.
    • ***

Etymology

Webster's Revised Unabridged Dictionary
Cf. F. discoïdal,
Chambers's Twentieth Century Dictionary
Gr. diskos, and eidos, form.

Usage

In literature:

The men also land the various sections of Roch's engines which are discoid in shape.
"Facing the Flag" by Jules Verne
A flat discoid organized remain occurs in abundance, and probably belongs to the same group.
"Journals of Travels in Assam, Burma, Bhootan, Afghanistan and TheNeighbouring Countries" by William Griffith
They are smooth, rounded, or discoid cysts, varying in size from a split-pea to a Tangerine orange.
"Manual of Surgery" by Alexis Thomson and Alexander Miles
The test is marked by discoid, circular, or hexagonal spots.
"Marine Protozoa from Woods Hole" by Gary N. Calkins
The radiate type is shown by discoid infusoria, by medusae, by starfish and their allies.
"Form and Function" by E. S. (Edward Stuart) Russell
Discoidal field: see discoidal area.
"Explanation of Terms Used in Entomology" by John. B. Smith
The sporangia are subrotund or discoidal in form, dark brown, smooth, shining.
"The Mushroom, Edible and Otherwise" by M. E. Hard
Threads of the capillitium pendent from a discoid membrane at the apex of the columella.
"The Myxomycetes of the Miami Valley, Ohio" by A. P. Morgan
This is a beautiful species, easily known by its discoidal or almost annulate sporangia mounted upon short dark black stipes.
"The North American Slime-Moulds" by Thomas H. (Thomas Huston) MacBride
Gilvous outside and inside or dingy tan; p. obtuse, discoid; g. tan.
"European Fungus Flora: Agaricaceae" by George Massee
Placenta deciduate and dome-like, composed of an aggregation of numerous discoidal lobes.
"Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10" by Various
Heads discoid; the flowers all alike, perfect and tubular, never yellow.
"The Manual of the Botany of the Northern United States" by Asa Gray
Placenta deciduate, and discoidal in form.
"The Cambridge Natural History, Vol X., Mammalia" by Frank Evers Beddard
This discoidal arrangement of the hair is typical of the emblem of fructification worn by the virgin in the Muingwa festival.
"The Swastika" by Thomas Wilson
Horizontal, face down, head toward the center; celts and discoidal stones at the feet, and a pot resting, mouth down, upon the head.
"Burial Mounds of the Northern Sections of the United States" by Cyrus Thomas
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In news:

Plaquenil® tablets contain 200mg hydroxychloroquine sulfate and are used in the treatment of malaria, discoid and systemic lupus erythematosus, and rheumatoid arthritis.
Media reports said Archbold had eaten dozens of mealworms, superworms and discoid roaches.
On Friday, the 32-year-old entered a roach -eating contest at Ben Siegel Reptile Store in Deerfield Beach, Florida, and won after devouring "dozens" of three-inch discoid roaches in a four-minute time period.
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In science:

The red blood cells are modeled as discoid vesicles.
The camera method, or how to track numerically a deformable particle moving in a fluid network
The aspect ratios of the discoid vesicles versus their volumetric fraction is plotted on figure 8.
The camera method, or how to track numerically a deformable particle moving in a fluid network
Figure 8: Discoid vesicle aspect ratio (length over diameter) versus volumetric fraction of vesicles in the channel for different vesicle velocities.
The camera method, or how to track numerically a deformable particle moving in a fluid network
The theory of the equilibrium shapes of phospholipid vesicles started in 1970, when Canham showed that the characteristic discoidal shape of red blood cells (erythrocytes) can be obtained by the minimization of the curvature elastic energy for a particular value of the area and enclosed volume costraints.
Amphiphilic Membranes
One finds: • A region of nonaxisymmetric tori (T na); • A region of discoidal tori (TDi ); • A region of stomatoidal tori (TSt ); • A region of spheroidal tori (TSp ).
Amphiphilic Membranes
The last three zones have boundaries on the limit curves: S IDi, where discoidal tori auto-intersect, and LDi, LSt, LSp where the diameter of axisymmetric tori vanishes.
Amphiphilic Membranes
Discoidal tori are equilibrium shapes only within the BC model with zero spontaneous curvature.
Amphiphilic Membranes
One can also observe axisymmetric discoidal tori, supporting the idea that the vesicles are described by the BC model—although one could not rule out the possibility that these shapes are merely metastable (see fig. 21).
Amphiphilic Membranes
However, one can also observe nonaxisymmetric discoidal tori, which do not appear as stable shapes in the phase diagram of the BC model with vanishing spontaneous curvature.
Amphiphilic Membranes
In (a) one clearly observes the meridian sections characteristic of the discoidal family.
Amphiphilic Membranes
The aim of this section is to analyze the behavior of the z -coordinate of the vertically perturbed orbit in the vicinity of the discoidal distribution.
On the stability criteria for equatorial circular orbits in Galactic Dynamics: I.Newtonian Thin Disks
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