ultracentrifuge

American  

[uhl-truh-sen-truh-fyooj] / ˌʌl trəˈsɛn trəˌfyudʒ /

noun

1. a high-speed centrifuge for subjecting sols or solutions to forces many times that of gravity and producing concentration differences depending on the weight of the micelle or molecule.

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verb (used with object)

ultracentrifuged, ultracentrifuging

1. to subject to the action of an ultracentrifuge.

ultracentrifuge British  

/ ˌʌltrəˈsɛntrɪˌfjuːdʒ, ˌʌltrəsɛnˈtrɪfjʊɡəl, -ˌsɛntrɪˈfjuːɡəl, ˌʌltrəˌsɛntrɪfjʊˈɡeɪʃən /

noun

1. a high-speed centrifuge used to separate colloidal solutions

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verb

1. (tr) to subject to the action of an ultracentrifuge

ultracentrifuge Scientific  

/ ŭl′trə-sĕn′trə-fyo̅o̅j′ /

1. A high-velocity centrifuge used in the separation of colloidal or submicroscopic particles.

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Other Word Forms

• ultracentrifugal adjective
• ultracentrifugally adverb
• ultracentrifugation noun

Etymology

Origin of ultracentrifuge

First recorded in 1925–30; ultra- + centrifuge

Example Sentences

Then, they spun each sample in an ultracentrifuge, which left a small nugget of plastic at the bottom of a tube.

From Science Daily • Feb. 20, 2024

The DNA was centrifuged at high speeds in an ultracentrifuge.

From Textbooks • Jun. 9, 2022

Definitely accused of "guilt by association" with atherosclerosis: giant molecules with a molecular weight of about 1,000,000, which contain 30% cholesterol, and have an ultracentrifuge flotation rate of 10 to 20.

From Time Magazine Archive

In Sweden, Nobel Laureate The Svedberg had designed an ultracentrifuge � a machine which separates heavy molecules from light ones, inferentially measuring their molecular weights, by whirling them at enormous speeds.

From Time Magazine Archive

Undegraded rods were taken out of the solution with an ultracentrifuge, and the protein fraction was precipitated by chemical treatment.

From Time Magazine Archive