Mat·ta·po·ni River 
(măt′ə-pə-nī)
(măt′ə-pə-nī) A river, about 200 km (125 mi) long, of eastern Virginia flowing southeast to the York River.
- religiously
- religiousness
- reline
- relinquish
- relinquisher
- anti-inflammatory
- anti-intellectual
- anti-intellectualism
- antiknock
- Anti-Lebanon Range
- antilepton
- Antillean
- Antilles
- antilock
- antilog
- antilogarithm
- antilogarithmic
- antimacassar
- antimagnetic
- antimalarial
- antimatter
- antimere
- antimeric
- antimetabolic
- antimetabolite