1. The ratio of the output to the input of any system 
2. Skilfulness in avoiding wasted time and effort
   "she did the work with great efficiency"

Derived forms: efficiencies

See also: efficient

Type of: ratio, skilfulness [Brit, Cdn], skillfulness [N. Amer]

Antonym: inefficiency

Encyclopedia: Efficiency Efficiency, plant

• myotic drug
• Myotis
• Myotis leucifugus
• Myotis velifer
• myotome
• myotomy
• myotonia
• myotonia atrophica
• myotonia congenita
• myotonic
• myotonic dystrophy
• myotonic muscular dystrophy
• Myrcia
• Myrciaria
• Myrciaria cauliflora
• Myrdal
• myriad
• myriagram
• myriameter
• myriametre
• myriapod
• Myriapoda
• Myrica
• Myrica cerifera
• Myrica gale