bistellarとは 意味・読み方・使い方

形容詞

bistellar (not comparable)

1. (astronomy) Involving two stars.
   • 1914, Mabel P. Malter, The World Process:

     The so-called nebula in virgo—a bistellar planetary system in the retrogressive course of envelopment

   • 1962, Space Age Astronomy, page 252:

     It must be stabilized about all three principal axes with a fully automatic, offset, bistellar guidance system .

   • 2019, David Wayne Hillery, The Second Degree, page 156:

     He tried to adjust the viewscreens so he could see the invisible things around the bistellar system, which Mr. Chamm's viewscreens had been able to show him when they had first arrived here.

   • 2023, J Gottlieb, “Should we colonize (interstellar) space?”, in Interstellar Travel:

     As Kohler (Ibid.) notes, even if we managed to exceed the speed of light by 50% via an Alcubierre drive (or something else), this would still be insufficient for a bistellar government.

2. (combinatorial topology) Involving the triangulation of a surface such that each vertex is incident to at most two stars.
   • 1997, Jan Ambjorn, ‎Mauro Carfora, ‎Annalisa Marzuoli, The Geometry of Dynamical Triangulations, page 177:

     Being a particular case of a stellar exchange, a bistellar operation is topology-preserving and Β_(σ,τ) = Β_(τ,σ) .

   • 2011, Peter L. Hammer, Bruno Simeone, “Quasimonotone Boolean Functions and Bistellar Graphs”, in Combinatorics 79. Part II, page 107:

     A bistellar graph is defined as a graph whose edge-set can be partitioned into stars so that each vertex is incident to at most two stars.

3. (figurative) Having two leaders or headliners.
   • 2016, Anthony Seldon, ‎Jonathan Meakin, The Cabinet Office, 1916–2018: The Birth of Modern Government:

     Brown became overlord of much domestic policy in what Hennessy described as 'a bistellar administration with policy constellations revolving around the two stars'.

   • 2018, Carolyn Hughes Tuohy, Remaking Policy, page 187:

     Essentially, although each of the "stars" in the bistellar administration was in a strong position of influence, and both essentially agreed on the direction of reform, one of them was anticipating that he would be in an even stronger position in the future.

派生語

• bistellar flip