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icosahedral

icosahedral

1 9.9
Shaped like a solid with twenty flat faces
  • adjective
  • /ˌaɪkəˈseɪdrəl/
  • Specialized
: icosaédrico
  • Better data revealed that spherical capsids overwhelmingly choose icosahedral symmetry.
  • icosahedral structure

Examples

  • The atoms are arranged in an icosahedral structure for some size ranges and in more closely packed structures typical of bulk metals at other sizes.

    Academic text (1993)
  • The propensity for forming the icosahedral structure is greater in the nickel clusters, consistent with the decrease in d-electron bonding in nickel relative to cobalt.

    Academic text (1993)
  • Just explain how Thales, about six hundred years BC, found that water was icosahedral.

    Blog text (5)
  • If icosahedral structures maximize the volume enclosed by a shell of identical units, is it any wonder viruses choose it?

    Academic text (2004)
  • In the structure of SV40, the principles of quasi-equivalence in icosahedral construction have been taken to a new level of elegant complication.

    Academic text (1995)
  • The minima are more numerous and don't necessarily correspond to Caspar and Klug's sequence of icosahedral structures.

    Academic text (2004)
  • In 1962, Donald Caspar and Aaron Klug devised a mathematical rule for generating icosahedral capsid structures.

    Academic text (2004)
  • Electron microscopy of infected cells demonstrated icosahedral, nonenveloped viral particles characteristic of MRVs (Figure 1).

    Academic text (2013)
  • The family Reoviridae is a diverse group of viruses with double-stranded RNA genomes contained within icosahedral, nonenveloped, double-layered protein capsids (1).

    Academic text (2013)
  • The soccer ball has an icosahedral shape, making it easy to kick and pass.

Surface Forms

icosahedral positive

Morphology

icosahedral = icosahedron (semi-transparent) = icosa + hedr + al

The adjective is formed regularly from the technical noun 'icosahedron' with the suffix '-al', but the base term itself is specialized.

Etymology

The word icosahedral comes from Greek parts icosa- 'twenty' and -hedron 'face'. So an icosahedral object is one that has twenty faces, like a triangle has three sides.