Francis Peyton Rous
— Noun
– English
~ United States pathologist who discovered viruses that cause tumors (1879-1970)
Francesco della Rovere
— Noun
– English
~ Italian pope from 1471 to 1484 who consented to the establishment of the Spanish Inquisition and built the Sistine Chapel (1414-1484)
family Rubiaceae
— Noun
– English
~ widely distributed family of mostly tropical trees and shrubs and herbs; includes coffee and chinchona and gardenia and madder and bedstraws and partridgeberry
Ficus rubiginosa
— Noun
– English
~ Australian tree resembling the banyan often planted for ornament; introduced into South Africa for brushwood
false rue anemone
— Noun
– English
~ slender erect perennial of eastern North America having tuberous roots and pink-tinged white flowers; resembles meadow rue
false rue
— Noun
– English
~ slender erect perennial of eastern North America having tuberous roots and pink-tinged white flowers; resembles meadow rue
Formica rufa
— Noun
– English
~ reddish-brown European ant typically living in anthills in woodlands