‘The particles may have any shape or size, but they are generally spherical, ellipsoidal, polyhedral, or irregular in shape.’
‘The oil-bearing fluid inclusion morphologies include spherical, oval, ellipsoidal, lath-like and irregular shapes, although there is no obvious relationship between inclusion morphology and quartz cement history.’
‘A primary concave parabolic mirror converges the light to one focus of a concave ellipsoidal mirror.’
‘It forms a ‘ball or shell’, as you say, of ejected material but the shape is ellipsoidal, not spherical as you might expect.’
‘Inspired by Maxwell and his mathematics, Niven turned increasingly towards the study of spherical and ellipsoidal harmonics.’
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