| 释义 |
guanine Chem.|ˈgwɑːniːn|
Formerly also -in.
[f. guano + -ine.]
A white amorphous substance obtained abundantly from guano, forming a constituent of the excrement of birds, and found in the liver, pancreas, and other parts of animals.
1850Fownes Chem. (ed. 3) 499 Guano also contains a peculiar substance called guanine, which closely corresponds with xanthic oxide. 1859New Syd. Soc. Year-bk. 93 Scherer detected guanin in the pancreas of the ox. 1889Geddes & Thomson Evol. Sex 23 Guanin, so abundant on the skin of fishes and some other animals. 1952New Biol. XIII. 75 This same silvery sheen, due to the deposition of crystals of guanine in the skin, also appears in the rainbow trout of Michigan streams. 1966New Scientist 24 Nov. 424/1 These are the four main genetic ‘code letters’ or bases adenine, guanine, thymine and cytosine. |