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pullorum disease

[puh-lawr-uh m, -lohr-]
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noun Veterinary Pathology.
  1. a highly contagious, frequently fatal disease of young poultry caused by the bacterium Salmonella gallinarum (pullorum), transmitted by the infected hen during egg production, and characterized by weakness, loss of appetite, and diarrhea.
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Origin of pullorum disease

1925–30; < New Latin (Bacterium) pullorum former name of the bacterium, Latin pullōrum, genitive plural of pullus cockerel, chicken (see pullet)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for pullorum disease

pullorum disease

noun
  1. an acute serious bacterial disease of very young birds, esp chickens, characterized by a whitish diarrhoea: caused by Salmonella pullorum, transmitted during egg productionAlso called: bacillary white diarrhoea
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Word Origin

Latin pullōrum of chickens, from pullus chicken
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012