Dictionary
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.