From Greek: πτερόν (pteron) = wing (because it was first found in butterfly wings).
pterin (countable and uncountable, plural pterins)
(organic compound) A ketonic amide derivative of pteridine responsible for some of the colouring in nature. It is also a component of folic acid.
• Petrin, Pinter, Pitner, e-print, nipter, pinter, pre-tin, pretin, reptin, terpin
Source: Wiktionary
24 December 2024
(adverb) in an intuitive manner; “inventors seem to have chosen intuitively a combination of explosive and aggressive sounds as warning signals to be used on automobiles”
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