noun, plural pen·i·cil·li·ums, pen·i·cil·li·a [pen-uh-sil-ee-uh] /ˌpɛn əˈsɪl i ə/.
Examples from the Web for penicillium
Eighty-one years later, the substance produced by the Penicillium notatum fungus is still in wide use as an antibiotic.The 19 Biggest Medical Breakthroughs of the Decade|Max Read|December 3, 2009|DAILY BEAST
Penicillium brevicaule uses the element in its development as a food substance.Inorganic Plant Poisons and Stimulants|Winifred E. Brenchley
On the other hand, the spores of Penicillium are capable of being transformed into yeast.
Aspergillus glaucus and Penicillium crustaceum are examples of these universal Mucedines.
More or less of the pale gray-green fruit of the characteristic Penicillium Camemberti can usually be seen.The Book of Cheese|Charles Thom and Walter Warner Fisk
Penicillium as a nutrient medium offered greater resistance to poisons than did any of the other fungi worked upon.