乳にゅう児じ脚かっ気けにゅうじかっけMeanings1nouninfantile beriberiMedical term for thiamine (vitamin B1) deficiency in infants, historically seen in breastfed infants of thiamine-deficient mothers.乳にゅう児じ脚かっ気けは、母ぼ乳にゅう栄えい養よう児じにまれに見みられるビタミン