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aster

/ˈæs.tər/

1 entry

noun

B2formalcommonscientific/ˈæs.tər/

A noun referring to a star-shaped structure formed in the cytoplasm of a cell, with fibers that radiate from the centrosome during mitosis.

  • 🇷🇺Существительное, обозначающее звездчатую структуру, образующуюся в цитоплазме клетки, с волокнами, расходящимися от центросомы во время митоза.
  1. Flowering plant B2 formal

    Any of various plants of the genus Aster, known for their daisy-like flowers that typically bloom in autumn.

    • The garden was full of purple asters in late September.
    • She planted asters along the fence for a splash of fall color.
    • Asters attract bees and butterflies before the first frost.

    🇷🇺Астра

    Synonyms: michaelmas daisy

  2. Cellular structure C1 formal scientific

    A star-shaped structure of microtubules that forms in the cytoplasm around the centrosome during cell division.

    • The aster helps organize the spindle fibers during mitosis.
    • Under the microscope, the aster appeared as a radiant star.
    • Each centrosome is surrounded by an aster in dividing cells.

    🇷🇺Астер

  • asters plural form
  • asters' possessive plural form
  • aster's possessive singular form