guanine

1.Guanine A nitrogenous base found in DNA and RNA.Guanine has a pruine ring structure.

鸟嘌呤：于DNA与RNA中一种含氮碱基，具有一个嘌呤环结构。

2.iridocyte A crystal of guanine in the dermis of fishes, a layer of which produces reflective silvery white or iridescent tones typical of fishes. Also called iridophore.

虹彩细胞嘌呤结晶鱼真皮层，产生反射银白色或虹色鱼典型色泽。也被称为虹彩体。