— cytidylic /sit'i dil"ik, suy'ti-/ , adj.
/sit"i deen', -din, suy"ti-/ , n. Biochem.
a white crystalline powder, C 9 H 13 N 3 O 5 , that is a ribonucleoside consisting of D-ribose and cytosine.
[ Cytidin (1910), equiv. to cyt- CYTO- + -idin suffix of organic compounds ]