because they were found to cause dermatitis. derma ray (plural derma rays) (physics, archaic) A weak radioactive ray arising from the impact of cathode particles...
derma (plural dermata or dermas) The inner layer of the skin. Synonym: dermis (India, Philippines, colloquial) Short for dermatologist. derma ray Borrowed...
death ray delta ray derma ray gamma ray grenz ray N-ray Roentgen-ray T-ray X-ray alpha ray anticrepuscular ray Becquerel calorific ray Becquerel ray Blu-ray...
meaning change, compare Ancient Greek δέρω (dérō, “to skin, to flay”), δέρμα (dérma, “skin”), then from “skin” to “bare, naked.” Cognates include Lithuanian...