| 释义 |
▪ I. bleb, n.|blɛb|
Also 7 blebb.
[app. like blob and blubber, from the action of making a bubble with the lips. In relation to blob, bleb expresses a smaller swelling; cf. top, tip, etc.]
1. A blister or small swelling on the skin; also a similar swelling on plants.
1607Topsell Four-f. Beasts 319 Wingals..be little swellings like blebs or bladders, on either side the joynt. 1677Plot Oxfordsh. 174 The blebs or blisters we find on the leaves of many Trees and Shrubs. 1876Duhring Dis. Skin 228 Blebs may occur in the place of vesicles.
fig.1651More Enthus. Triumph (1656) 180 You blebs of venery, you bags of filth!
2. A bubble of air in water, glass, or other substance at some time fluid.
1647H. More Song of Soul Notes 165/2 Dancing blebs and bubbles in the water. 1716Desaguliers in Phil. Trans. XXIX. 447 The Lens ought to be..without Veins or Blebs. 1861Furnivall San Graal (Roxb.) Pref. 8 A..green vessel..showing by a bleb in it that it was of glass.
3. A vesicular body.
1775Ellis in Phil. Trans. LXVI. 15 note, The cell-like divisions..are only a row of single blebs of pith. 1775Clayton in ibid. 105 From the surface oozes out a gum in round blebs. 1880J. E. Burton Handbk. Midwives §38. 25 The ovum, or egg, is at first a little bladder, or bleb.
4. Cytology. A protuberance on the surface of a cell.
1962Laboratory Investigation XI. 1012/1 Lysis of membranes, bleb formation, and disappearance of villi. 1977Sci. Amer. May 63/1 (caption) Death of a cancer cell is indicated by the blebs, or deep folds, that have appeared on its surface membrane. 1981Ibid. Mar. 67/2 Many animal cells are capable of amoeboid motion. They flatten out and retract; they develop transitory bumps or bubbles called blebs. 1983Environmental Res. XXXI. 343 These blebs contained cell organelles, such as mitochondria, vesicles, and ribosomes.
▪ II. bleb, v.
[f. prec. n.]
1. trans. To furnish with blebs.
1821Clare Vill. Minstr. II. 84 While big drops..bleb the withering hay with pearly gems.
2. intr. Of a cell: to develop a bleb or blebs. Of paint: to blister.
[1934Webster, Bleb, v.t. & i., to cover with blebs or bubbles; bubble. Dial.] 1973A. K. Harris in Locomotion of Tissue Cells (Ciba Found. Symp. No. 14) 9 As cells respread after being detached, their margins first bleb, until ruffling gradually takes over. 1976Nature 3 June 413/1 One of the cells did not bleb while the other seven initiated a new bleb every 30 s. 1977Evening Post (Nottingham) 24 Jan. 9/2 His Lada car was still under guarantee when he notified the suppliers that the paint was ‘blebbing’. 1983Jrnl. Fish Dis. VI. 33 The membrane facing the PV was smooth and blebbed into the PV.
Hence blebbed ppl. a.; ˈblebbing vbl. n., the formation of a bleb; a bleb; also as ppl. a.
1960Sci. Amer. Jan. 134/1 Membrane-blebbing and related phenomena. 1961Webster, Blebbed. 1966Exper. Cell Res. XLI. 624 In the glutaraldehyde fixed eggs..a large number of membranous outpocketings, membrane blebbings and blister-like elevations can be observed. Ibid. 628 Doubts..that the blebbing membranes are present all the time. 1973A. K. Harris in Locomotion of Tissue Cells (Ciba Found. Symp. No. 14) 253 In the life of a given culture the majority of cells are isolated..and display vigorous blebbing activity. 1980Jrnl. Protozool. XXVII. 270/1 The numerous pellicular blebs over these inflated cisternae suggest that their contents may be released by blebbing. 1982Exper. Cell Res. CXXXIX. 275 Actively dividing cells retained a high proportion of rounded, ruffled and blebbed cells during all phases of the cell cycle. |