xenosphere

English

Etymology

xeno- +‎ sphere

Noun

xenosphere (plural xenospheres)

1. A spheroid culture from a xenograft.
2. A particulate remnant of carbon released in the combustion of oil or coal.
   • 1970, Alfred Gordon Gaydon, Flames; their structure, radiation and temperature, page 204:

     There is good evidence that with burning oil sprays the larger droplets may crack to carbon, sometimes forming xenospheres which pass through the flame front.

   • 1988, Ronald J. Adrian, Laser Anemometry in Fluid Mechanics III:

     In the region of the spray cone rather large vaporizing or burning oil droplets up to 100 rim, or their residuals like xenospheres, will be found.