(noun) a high speed centrifuge used to determine the relative molecular masses of large molecules in high polymers and proteins
(verb) subject to the action of an ultracentrifuge
Source: WordNet® 3.1
ultracentrifuge (plural ultracentrifuges)
A high-speed centrifuge, especially one free from convection that is used to separate colloidal particles.
ultracentrifuge (third-person singular simple present ultracentrifuges, present participle ultracentrifuging, simple past and past participle ultracentrifuged)
To submit a material to ultracentrifugation