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ultrafilter
ultrafiltrate
ultrafiltration
ultrahigh frequency
ultraism
ultralarge crude carrier
ultralight
ultramafic
ultramarine
ultramicrometer
ultramicroscope
ultramicroscopic
ultramodern
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ultranationalism
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ultisol
ul·ti·sol [ últi sàwl ] (plural ul·ti·sols)


noun 
Definition:
 
weathered acid soil: a highly weathered and leached acid soil with high levels of clay below the top layer
[Mid-20th century. <ultimate + Latin solum "soil"]
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