Riv·er·side 
(rĭvər-sīd′)
(rĭvər-sīd′) A city of southern California east of Los Angeles on the Santa Ana River near San Bernardino. It grew as an agricultural center after the introduction of the navel orange in 1873.
- black-necked stork
- blackness
- black nightshade
- black oak
- black out
- blackout
- Black Panther
- black pepper
- blackpoll
- Blackpool
- black powder
- Black Power
- black pudding
- black racer
- black raspberry
- black rat
- Black River
- Black Rod
- black rot
- Black Russian
- black salsify
- Blacksburg
- Black Sea
- black sheep
- Black Shirt