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ultralarge crude carrier
ultralight
ultramafic
ultramarine
ultramicrometer
ultramicroscope
ultramicroscopic
ultramodern
ultramontane
ultramontanism
ultramundane
ultranationalism
ultrashort
ultrasonic
ultrasonic testing
ultrasonic welding
ultrasonics
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ultravirus
ul·tra·vi·rus [ últrə vrəss ] (plural ul·tra·vi·rus·es)


noun 
Definition:
 
very small virus: a virus small enough to pass through an ultrafilter

ul·tra·vi·ral [ ùltrə vrəl ] adjective
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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