Home › Words › U › ultrasedimentationultrasedimentationultrasedimentation means sedimentation by means of an ultracentrifuge.Among words judged in Lexicurio's Arena, ultrasedimentation ranks #2,165 of 42,749 for Qualifying.EtymologyFrom ultra- + sedimentation.nounsedimentation by means of an ultracentrifugeDefinitions & examples from Wiktionary (CC BY-SA 3.0).