The Collaborative International Dictionary
Rudd \Rudd\, n. [See Rud, n.] (Zo["o]l.) A fresh-water European fish of the Carp family ( Leuciscus erythrophthalmus). It is about the size and shape of the roach, but it has the dorsal fin farther back, a stouter body, and red irises. Called also redeye, roud, finscale, and shallow. A blue variety is called azurine, or blue roach.
Wiktionary
a. sky-blue; azure. n. The blue roach of Europe ((taxlink Leuciscus caeruleus species noshow=1)), so called from its color.
Usage examples of "azurine".
Within it shone an azurine form sprinkled with tiny starlike points of brilliance.
Beyond rose the apartment houses where the middle and lower classes lived, those of the poorer characterized by few windows and cracking plaster, and those of the better-off by the wonderful multistoried murals painted by the gypsy artists, and by the brilliant azurine tiles which kept the houses warm in winter and cool in summer.
They are Diamine Gold, Diamine Scarlet B, Diamine Scarlet 3 B, Diamine Bordeaux S, Diamine Blue R W, and Diamine Green G, Diamine Red N O and B, Chicago Blue G and R R W, Brilliant Purpurine R, Diamine Scarlet B, Deltapurpurine 5 B, Chrysamine, Titan Blue, Titan Pink, Congo Oranges G and R, Erie Blue 2 G, Congo R, Brilliant Congo R, Erika B N, Benzopurpurine 4 B and 10 B, Chrysophenine, Titan Yellow, Titan Brown Y, R and O, Congo Brown G, Sulphon Azurine B, Zambesi Black D.
The color of azurines always made her throat grow tight with tears, for no reason she could discern.
She let her mind wander, then decided that she needed to concentrate on good things, so she thought of Thetis, and the warm wind off the sea, and the smell of the azurines that grew around the front door of the house.