Longman Dictionary English From Longman Dictionary of Contemporary EnglishRelated topics: Illness & disabilityberiberiber‧i‧ber‧i /ˌberiˈberi/ noun [uncountable] MIBa disease of the nerves caused by lack of vitamin BOrigin beriberi (1700-1800) Sinhalese bæribæri “weakness” ldoceonline.com