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


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


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

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.

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