1. A room that is virtually free of dust or bacteria; used in laboratory work and in assembly or repair of precision equipment
   - clean room

Derived forms: white rooms

Type of: room

• genus Ptilocrinus
• genus Ptilonorhynchus
• genus Ptloris
• genus Ptyas
• genus Ptychozoon
• genus Puccinia
• genus Pueraria
• genus Puffinus
• maidenhead
• maidenhood
• maidenlike
• maidenliness
• maidenly
• maidhood
• maidism
• maidservant
• Maidu
• Maiduguri
• maieutic method
• maiger
• maigre
• maikoa
• mail
• mail call
• mail car