o·cean·ar·i·um 
(ō′shə-nârē-əm)
(ō′shə-nârē-əm)n. pl. o·cean·ar·i·ums or o·cean·ar·i·a (-ē-ə)
A large aquarium for the study or display of marine life.
- ultranationalist
- ultranationalistic
- ultrashort
- ultrasonic
- ultrasonically
- ultrasonics
- ultrasonogram
- ultrasonograph
- ultrasonographer
- ultrasonographic
- ultrasonography
- ultrasophisticated
- ultrasound
- ultrastructure
- ultrathin
- ultraviolet
- ultraviolet astronomy
- ultraviolet dropout
- ultraviolet photoemission spectroscopy
- ulu
- Ulugh Muztagh
- ululant
- ululate
- ululation
- Uluru