n.
Pronunciation: ' yu ̇ r- ə - ˌ sil, -s ə l
Function: noun
Etymology: International Scientific Vocabulary 1 ur- + ac etic + -il (substance relating to)
Date: 1890
: a pyrimidine base C 4 H 4 N 2 O 2 that is one of the four bases coding genetic information in the polynucleotide chain of RNA ― compare ADENINE , CYTOSINE , GUANINE , THYMINE