WordReference Random House Unabridged Dictionary of American English © 2020
a•cra•sin  (ə krāsin),USA pronunciation n. [Mycol.]
  1. Fungia chemotactic substance, identical with cAMP, secreted by myxamebas of cellular slime molds and attracting other myxamebas to aggregate and form a pseudoplasmodium.
  • Greek; see a-6, crasis) + -ales -ales) + -in2
  • Neo-Latin Acras(iales) an order of cellular slime molds (Acras(is) a genus, so named from the lack of fusion between the cells (
  • 1945–50


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