ru·​bus | \ ˈrü-bəs How to pronounce rubus (audio) \
plural rubus

Definition of rubus

: any of a genus (Rubus) of plants (such as a blackberry or a raspberry) of the rose family with leaves that typically have three to seven leaflets or that are simple and lobed, white or pink flowers, usually prickly stems, and a mass of carpels ripening into an aggregate fruit composed of many drupelets

First Known Use of rubus

14th century, in the meaning defined above

History and Etymology for rubus

New Latin, from Latin, blackberry

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The first known use of rubus was in the 14th century

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to form ideas or theories about something

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