cryptocyanins

Noun

cryptocyanin (usually uncountable, plural cryptocyanins)

1. (usually) A hexameric protein associated with moulting in crustaceans
   • Cryptocyanin, a copper-free hexameric protein in crab (Cancer magister) hemolymph, has been characterized and the amino acid sequence has been deduced from its cDNA.1999 March 2, Nora B. Terwilliger, “Cryptocyanin, a crustacean molting protein: Evolutionary link with arthropod hemocyanins and insect hexamerins”, in PNAS, volume 95, number 5
2. (usually) Synonym of cryptocyanine.
   • One which has recently been tried, known as cryptocyanin, makes plates so sensitive to the extreme red (at the very end of the visible spectrum, near Fraunhofer's A line) that photographs of a landscape may be obtained, with this red light, almost instantaneously.1922, Scientific American, volume 127, page 418

   Synonyms:

   cryptocyanine