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English Wikipedia has an article on:

tactoid (plural tactoids)

  1. (physics) An elongated liquid crystal microdomain
  2. (biology) An elongated particle, particularly a cell
    • 2015, Chenhui Peng, Oleg D. Lavrentovich, “Chirality Amplification and Detection by Tactoids of Lyotropic Chromonic Liquid Crystals”, in arXiv[1]:
      Minute quantities of chiral molecules such as amino acid L-alanine and limonene transform the racemic array of left- and right-twisted tactoids into a homochiral set.

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