Definition of leucopterin
: a crystalline alkali-soluble compound H2NC6N4(OH)3 that constitutes the white pigment of cabbage butterflies and other lepidoptera and wasps and is convertible into xanthopterin on reduction; 2-amino-4,6,7-trihydroxy-pteridine
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Origin and Etymology of leucopterin
International Scientific Vocabulary leuc- + pterin
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