1. a genus of fungi that includes species used to produce penicillin and other antibiotics
Usage: scientific
2. a blue or green mold that grows on food and organic matter

Examples

• Penicillium chrysogenum is the primary source of penicillin production.
• The researcher studied various species of penicillium in the laboratory.
• Green penicillium mold had formed on the old bread.
• Fleming’s discovery of penicillium revolutionized medicine.
• The cheese gets its distinctive flavor from penicillium cultures.
• Scientists cultivate penicillium to harvest antibiotics.