Py`o*cy"a*nin (?), n. [Gr. pus + dark blue.] Physiol. (Chem.

A blue coloring matter found in the pus from old sores, supposed to be formed through the agency of a species of bacterium (Bacillus pyocyaneus).

Pseudomonas aeruginosa C13H10N2O

© Webster 1913.

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