1. Ribonucleic acid found in the nucleolus of the cell
   - nuclear RNA

Type of: ribonucleic acid, RNA

• petiteness
• petitio
• petitio principii
• petition
• petitionary
• petitioner
• Petrarca
• Petrarch
• Petrarchan sonnet
• petrel
• Petri dish
• petrifaction
• petrification
• Petrified Forest National Park
• petrify
• petrifying
• Petrine
• petrissage
• petrochemical
• petrochemistry
• Petrocoptis
• petrodollar
• Petrogale
• petroglyph
• Petrograd