u·ra·cil 
(yrə-sĭl)
(yrə-sĭl)n. Abbr. U
A pyrimidine base, C4H4N2O2, that is an essential constituent of RNA.
[UR(EA) + AC(ETIC) + -il, substance relating to.]
- Rhode Island Greening
- Rhode Island Red
- Rhodes
- Rhodes
- Rhodesia
- Rhodesia and Nyasaland
- Rhodesian
- Rhodesian man
- Rhodesian ridgeback
- Rhodes scholar
- Rhodes scholarship
- rhodium
- rhodo-
- rhodochrosite
- rhododendron
- rhodolite
- rhodonite
- Rhodope Mountains
- rhodopsin
- rhodora
- rhomb
- rhomb-
- rhomb-
- rhombencephalic
- rhombencephalon