Definition of penicillium in English:

penicillium

Line breaks: peni|cil¦lium
Pronunciation: /ˌpɛnɪˈsɪlɪəm
 
/

noun (plural penicillia)

A blue mould that is common on food, being added to some cheeses and used sometimes to produce penicillin.
More example sentences
  • This is because the cheese maker has to let the air inside the cheese for the penicillium (the blue cheese mold) to develop.
  • Since 1941, when the first bacterial infection was cured with a concoction derived from the fungus penicillium, we've depended on antibiotics to be there when we're sick.
  • Identifying penicillia is relatively easy for a trained microbiologist; certifying that the substance ‘dissolving’ bacteria on petri dishes is true penicillin is quite a different matter.

Origin

mid 19th century: modern Latin, from Latin penicillus 'paintbrush' (because of the brush-like fruiting bodies).

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