microballoonn.
/ˈmʌɪkrəʊbəˌluːn/, U.S. /ˈmaɪkroʊbəˌlun/ 1. A man-made hollow microsphere, usually of glass or synthetic resin, esp. one of a kind used in bulk to provide insulation or buoyancy.
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the world > space > place > presence > fact of taking up space > [noun] > filling > filling of vacant space > that which serves to
filler1591
filling1597
filler-up1710
packing1779
upfilling1822
fill-up1853
infilling1871
filler-in1877
space-filler1886
infill1939
microballoon1954
fill1957
1954 Official Gaz. (U.S. Patent Office) 27 Apr. 873/1 Microballoon. For hollow, finely divided, hole-free, low density particles of synthetic resins and/or similar film-forming materials for general use in the industrial arts. Claims use since about Sept. 11, 1950.
1967 Amer. Ceramic Soc. Bull. 46 442/2 Glass microballoon particles are tiny, hollow, hole-free spheres having a true particle density of about 22 lbs/cu ft and a bulk density of 15 lbs/cu. ft.
1967 Amer. Ceramic Soc. Bull. 46 594/2 The microballoons varied in form from perfect spheres to a teardrop shape.
1980 R. D. Bent & J. L. McKinley Aircraft Maintenance & Repair (ed. 4) ix. 262/2 The effect of microballoons added to potting resin is to produce a lighter-weight and more resilient repair.
1994 Investigative Radiol. 29 (Suppl. 2) S149 (title) The use of polymeric microballoons as ultrasound contrast agents for liver imaging.
2. Medicine. A very small balloon catheter; the inflatable part of such a catheter.
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the world > health and disease > healing > medical appliances or equipment > other surgical equipment > [noun] > tube or cannula > catheter
cathering?1541
catheter1601
algalie1739
suspensor1747
balloon1911
balloon catheter1941
microballoon1964
1964 Amer. Jrnl. Obstetr. & Gynecol. 90 493/2 The placement into the extraovular space of the recording microballoon is done through a routine per vaginam examination.
1975 Prostaglandins 9 475 Uterine contractility was recorded by the microballoon technique.
1985 Jrnl. Surg. Res. 39 192 Instrumentation included a venipuncture needle with a closed tip and a round latex microballoon attached at a side hole.
This entry has been updated (OED Third Edition, December 2001; most recently modified version published online March 2022).
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n.1954