| 释义 |
ˌultramicroˈscopic, a.
Formerly also with hyphen.
[f. ultra- 2 + microscopic a.]
Of such minute size as to be invisible or indeterminate under the ordinary light microscope; of or pertaining to the use of the ultramicroscope.
1870Tyndall Heat (ed. 4) xv. §754. 521 To make our precipitated particles grow from an infinitesimal and altogether ultra-microscopic size. 1905Daily News 18 May 8 An optical appliance for making visible ultramicroscopic particles in fluids. 1932Nature 2 Jan. 21/1 Optical ultra-microscopic examination of..films. 1946F. Schneider Qualitative Organic Microanalysis iv. 103 An instrument for estimating the refractive index of particles of ultramicroscopic size. 1958Times Lit. Suppl. 17 Jan. 33/2 A description of this extraordinary population of all shapes and sizes from rabbits to ultramicroscopic organisms. 1978Nature 22 June 610/1 Proteolytic enzymes..are emitted through ultra⁓microscopic pores in the eggshell.
Hence ˌultramicroˈscopical a., in the same sense; ˌultramicroˈscopically adv.
1904Jrnl. R. Microsc. Soc. 711 There is a very disturbing adsorption effect of the glass planes on the ultra⁓microscopical particles. 1906Ibid. 366 Fats and ethereal oils were treated with chlorides of the metals, and the products of reaction ultramicroscopically studied. 1929A. S. C. Lawrence Soap Films v. 88 Microscopically, we see the actual particles; ultramicroscopically, we only see the light diffracted by particles themselves invisible. 1976Jrnl. Compar. Path. LXXXVI. 516 Light and ultra⁓microscopical features of spontaneous glomerular lipoidosis are described. 1981Jrnl. Protozool. XXVIII. 308 Thin sections of treated cells, examined ultramicroscopically, exhibited vacuolations..and severe mitochondrial damage. |