deficiency B1 Topic:Health & Medicine US /dɪˈfɪʃənsi/ See IPA manual Freq #21500 Meanings 1 noun A lack of something needed, especially something essential to good health. A vitamin D deficiency can make your bones weak. 2 noun A fault or weakness; the state of not being good enough. The report pointed out several deficiencies in the safety system. Thesaurus Synonyms 1 noun · a lack of something needed,... lackshortagewant 2 noun · a fault or weakness; the... inadequacy Word family Forms deficiencies Derived forms bideficiencyhaplodeficiencyhematodeficiencyhyperdeficiencyimmunodeficiencyindeficiencyphosphodeficiencypseudodeficiency Common collocations mineral deficiency Noun + noun Etymology AI details From deficient + -cy. Compare Latin dēficientia. Topics Health & Medicine External links Cambridge Dictionary Wiktionary Google Images # deficiency **Type:** Word **Level:** B1 **Part of speech:** noun **IPA (US):** /dɪˈfɪʃənsi/ **Frequency rank:** 21500 ## Meanings 1. A lack of something needed, especially something essential to good health. 2. A fault or weakness; the state of not being good enough. ## Examples - A vitamin D deficiency can make your bones weak. - The report pointed out several deficiencies in the safety system. ## Derived Forms - bideficiency - haplodeficiency - hematodeficiency - hyperdeficiency - immunodeficiency - indeficiency - phosphodeficiency - pseudodeficiency ## Etymology From deficient + -cy. Compare Latin dēficientia. ## AI Etymology deficiency comes from deficient + -cy. Compare Latin dēficientia. Current senses include A lack of something needed, especially something essential to good health and A fault or weakness; the state of not being good enough. English relatives and later formations include bideficiency, haplodeficiency, hematodeficiency. ## Topics - Health & Medicine markdown