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  1. Spheroid definition, a solid geometrical figure similar in shape to a sphere, as an ellipsoid. See more.
  2. Spheroid definition is - a figure resembling a sphere; also: an object of approximately spherical shape.
  3. Sep 04,  · A spheroid is an ellipsoid having two axes of equal length, making it a surface of revolution. By convention, the two distinct axis lengths are denoted a and c, and the spheroid is oriented so that its axis of rotational symmetric is along the z-axis, giving it the parametric representation x = asinvcosu (1) y = asinvsinu (2) z = ccosv, (3) with u in [0,2pi), and v in [0,pi].
  4. Define spheroid. spheroid synonyms, spheroid pronunciation, spheroid translation, English dictionary definition of spheroid. n. A body that is shaped like a sphere but is not perfectly round, especially an ellipsoid that is generated by revolving an ellipse around one of its axes.
  5. Oct 14,  · spheroid (comparative more spheroid, superlative most spheroid) Of a shape similar to a squashed sphere. Noun. spheroid (plural spheroids) A solid of revolution generated by rotating an ellipse about its major, or minor axis. UFOs are reported as being either oblate (saucer-shaped) or prolate (cigar-shaped) spheroids. Hyponyms.
  6. Spheroid Applications. Perhaps most notably, tumor spheroids can help scientists understand the in vivo microenvironments of tumors, which can help researchers predict drug efficacy in cancer research. The earliest iterations of spheroids were developed in the s to study the impact of radiotherapy on human tumor cells.
  7. 4. Place spheroid microplates in a humidified incubator set to 37°C and 5% CO 2. 5. Evaluate spheroid formation and growth at 0, 24, 48, and 72 hour time points visually and perform-ing a cell viability assay. Visualization Spheroid formation and growth was assessed via microscopic examination using an inverted microscope.