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单词 microtome
释义

microtomen.

Brit. /ˈmʌɪkrə(ʊ)təʊm/, U.S. /ˈmaɪkroʊˌtoʊm/, /ˈmaɪkrəˌtoʊm/
Origin: Formed within English, by compounding; modelled on a French lexical item. Etymons: micro- comb. form, -tome comb. form.
Etymology: < micro- comb. form + -tome comb. form, after French microtome ( C. Chevalier Des microscopes et leur usage (1839 ); in quot. 1856 following H. Strauss-Durckheim Traité pratique et théorique d'anatomie comparative (1842) I. ii. 152).
Biology and Medicine.
Originally: †an instrument for microdissection, resembling tiny shears (obsolete). In later use: any of various instruments used to cut thin sections for microscopy, typically consisting of a sample holder, a fixed blade, and a mechanism for controlling the thickness and angle of cutting.
ΘΚΠ
the world > matter > chemistry > equipment or apparatus > [noun] > instruments
rammer1660
water hammer1765
saccharometer1784
thermometer1801
alcoholometer1803
alcohometer1809
cryophorus1813
nitrometer1821
alcoometer1825
alcoholmeter1831
blanchimeter1847
wet-bulb1849
absorptiometer1855
microtome1856
argentometer1879
Brix1897
Ostwald pycnometer1898
turbidimeter1905
Ostwald viscometer1911
oedometer1915
impinger1922
polarograph1925
photogoniometer1927
ultramicrotome1953
1856 W. B. Carpenter Microscope v. 211 The ‘microtome’ of M. Strauss-Durckheim.
1875 Q. Jrnl. Microsc. Sci. 15 24 If placed dry in a rigid tube, as that of the microtome..the addition of..water will..cause the pith-cells to expand.
1916 H. E. Jordan & J. S. Ferguson Text-bk. Histol. xx. 734 Thick sections may be obtained from the firmer tissues by free~hand sectioning with a razor, but for the satisfactory preparation of thin sections a microtome is a necessity.
1955 W. Gaddis Recognitions iii. v. 874 Then you slice them in half just like that with a microtome knife.
1969 T. C. Thorstensen Pract. Leather Technol. xii. 204 With histological techniques it is possible to stain selectively the oil in the leather. In this technique the leather is cut on a microtome and placed in a bath containing the stain.
1989 B. Alberts et al. Molecular Biol. Cell (ed. 2) iv. 138 The tissues are usually cut into very thin slices (sections) with a microtome, a machine with a sharp metal blade that operates rather like a meat slicer.
1996 Ecology 77 1279 Samples were sliced into 1 μm sections with a microtome, mounted onto microscope slides with gelatin, and stained with toluidine blue.
This entry has been updated (OED Third Edition, December 2001; most recently modified version published online March 2022).

microtomev.

Brit. /ˈmʌɪkrə(ʊ)təʊm/, U.S. /ˈmaɪkroʊˌtoʊm/, /ˈmaɪkrəˌtoʊm/
Origin: Formed within English, by conversion. Etymon: microtome n.
Etymology: < microtome n.
Biology and Medicine.
transitive. To section (tissue) with a microtome; to cut (a section) with a microtome.
ΘΚΠ
the world > relative properties > wholeness > mutual relation of parts to whole > separation > action of dividing or divided condition > division by cutting > divide by cutting [verb (transitive)] > with a microtome
microtome1893
1893 Brit. Med. Jrnl. 23 Sept. 685/2 The divided roots were microtomed and examined in serial sections.
1898 Philos. Trans. (Royal Soc.) B. 190 95 The following nerves of muscles were microtomed for detection of some fibres.
1912 New Phytologist 11 104 Rusted wheat plants and their seedlings were microtomed.
1944 Amer. Jrnl. Bot. 31 303/2 They [sc. spines] were pulled out of old areoles which had to be microtomed.
1969 Bot. Gaz. 130 232/1 Sections were microtomed at 10–15μ and stained.
1990 Food Addit. & Contaminants 7 500 A portion of the cylinder containing a section of contaminated cheese..and a portion of uncontaminated material was microtomed.

Derivatives

ˈmicrotomed adj.
ΘΚΠ
the world > relative properties > wholeness > mutual relation of parts to whole > separation > action of dividing or divided condition > division by cutting > [adjective] > cut into pieces > cut with a microtome
microtomed1912
1912 New Phytologist 11 72 A method of staining microtomed sections in the ribbon.
1930 New Phytologist 29 151 A number of attempts have been made to devise a successful method of staining microtomed sections of fungal hyphae in non-woody plant tissues.
1995 Amer. Jrnl. Bot. 82 778/1 Outer peripheral tissues..were removed by scalpel along both margins of the microtomed sections.
ˈmicrotoming n.
ΚΠ
1926 Jrnl. Ecol. 14 98 Embedding in paraffin and subsequent microtoming gave only distorted forms, due to the tearing of the cell-walls.
1994 Biophysical Jrnl. 66 1210/1 The microtomed surface of the epoxy bore distinct knife marks because of the micro toming.
This entry has been updated (OED Third Edition, December 2001; most recently modified version published online March 2022).
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n.1856v.1893
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