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acrasin

[uh-krey-sin]

noun

Mycology.
  1. a chemotactic substance, identical with cAMP, secreted by myxamebas of cellular slime molds and attracting other myxamebas to aggregate and form a pseudoplasmodium.



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Word History and Origins

Origin of acrasin1

1945–50; < New Latin Acras ( iales ) an order of cellular slime molds ( Acras ( is ) a genus, so named from the lack of fusion between the cells (< Greek; a- 6, crasis ) + -ales -ales ) + -in 2
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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Then, a bell sounds, and acrasin is released by special cells toward which the others converge in stellate ranks, touch, fuse together, and construct the slug, solid as a trout.

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acraldehydeacre