Berkefeldn.

Brit.

/ˈbəːkfɛld/,

/ˈbəːkfɛlt/, U.S.

/ˈbərkfɛld/

Forms: 1800s– Berkefeld, 1900s Berkefield.

Origin: From a proper name. Etymon: proper name Berkefeld.

Etymology: < the name of Wilhelm Berkefeld (1836–97), German engineer, who developed a water filter using diatomaceous earth in 1891.In the form Berkefield with remodelling within English after surnames in -field (see field n.¹).

attributive. Designating a type of filter containing baked diatomaceous earth (or in later use, other ceramic material), used to purify water by removing bacteria; (also) designating filtration performed with such a filter, or a filtrate obtained from one.

ΘΚΠ

the world > life > biology > laboratory analysis > apparatus > [noun] > other apparatus

compressorium1845

air bath1848

compressor1881

Berkefeld1891

incubator1896

catchwater1901

ultrafilter1908

fermenter1925

gradocol membrane1931

roller tube1933

Tiselius (electrophoresis) apparatus1939

sonicator1952

Sonifier1961

cytocentrifuge1966

lyophilizer1967

biochip1980

1891 Lancet 12 Sept. 628/1 The Berkefeld filter consists primarily of a porous pot.

1951 R. J. Ludford in G. H. Bourne Cytology (ed. 2) ix. 402 A filterable tumour..yields by Berkefeld-filtration a cell-free filtrate.

1993 Nature 21 Oct. 703/3 He got no evidence that Berkefeld filtrates contained any more virus than had been put in initially.

2009 J. W. Rawles How to survive End of World as we know It (e-book ed.) iv. You can buy Berkefeld white ceramic filter elements by themselves from a number of vendors.

This entry has been updated (OED Third Edition, June 2019; most recently modified version published online December 2021).

单词	berkefeld
释义	Berkefeldn. Brit. /ˈbəːkfɛld/, /ˈbəːkfɛlt/, U.S. /ˈbərkfɛld/ Forms: 1800s– Berkefeld, 1900s Berkefield. Origin: From a proper name. Etymon: proper name Berkefeld. Etymology: < the name of Wilhelm Berkefeld (1836–97), German engineer, who developed a water filter using diatomaceous earth in 1891.In the form Berkefield with remodelling within English after surnames in -field (see field n.¹). attributive. Designating a type of filter containing baked diatomaceous earth (or in later use, other ceramic material), used to purify water by removing bacteria; (also) designating filtration performed with such a filter, or a filtrate obtained from one. ΘΚΠ the world > life > biology > laboratory analysis > apparatus > [noun] > other apparatus compressorium1845 air bath1848 compressor1881 Berkefeld1891 incubator1896 catchwater1901 ultrafilter1908 fermenter1925 gradocol membrane1931 roller tube1933 Tiselius (electrophoresis) apparatus1939 sonicator1952 Sonifier1961 cytocentrifuge1966 lyophilizer1967 biochip1980 1891 Lancet 12 Sept. 628/1 The Berkefeld filter consists primarily of a porous pot. 1951 R. J. Ludford in G. H. Bourne Cytology (ed. 2) ix. 402 A filterable tumour..yields by Berkefeld-filtration a cell-free filtrate. 1993 Nature 21 Oct. 703/3 He got no evidence that Berkefeld filtrates contained any more virus than had been put in initially. 2009 J. W. Rawles How to survive End of World as we know It (e-book ed.) iv. You can buy Berkefeld white ceramic filter elements by themselves from a number of vendors. This entry has been updated (OED Third Edition, June 2019; most recently modified version published online December 2021). < n.1891
随便看	to use a sledgehammer to crack a nut to use a sledgehammer to kill a gnat to use company with a person to use fives to use off to use one's brains to use one's discretion to use one's etc to use one's fives to use one's head to use one's loaf to use one's nicety to use out to use the long handle to use the same hymn sheet to use the sea to use the seas to use the —— card to use up to use —— misters to usher in to usurp on or upon to usurp the place of to usward to utter one's stomach