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a•cra•sin

Pronunciation: (u-krā'sin), [key]
—n. Mycol.
a chemotactic substance, identical with cAMP, secreted by myxamebas of cellular slime molds and attracting other myxamebas to aggregate and form a pseudoplasmodium.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

acraldehyde

acre

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