A nutritional disease caused by a deficiency of riboflavin (vitamin B2), leading to cracked lips, sore throat, and skin problems.
From the prefix 'a-' meaning 'without,' combined with 'riboflavin' (vitamin B2) and the medical suffix '-osis,' literally meaning a condition of lacking riboflavin.
This disease was common in poor communities eating only refined grains—riboflavin was stripped away during processing, which is why we now fortify flour with B vitamins!
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