Spheroidal

Spheroidal refers to a shape that is approximately spherical but may have slight deviations from a perfect sphere. This term is often used in geology, astronomy, and materials science to describe objects or structures that are nearly round but not perfectly so. In geology, spheroidal weathering is a process where rocks break down into roughly spherical shapes due to weathering and erosion. In astronomy, spheroidal galaxies are a type of galaxy that have a smooth, ellipsoidal shape, unlike spiral or irregular galaxies. In materials science, spheroidal particles are used in various applications, such as in paints and coatings, where their shape can affect properties like flow and adhesion. The term "spheroidal" is also used in biology to describe certain cell types or structures that have a roughly spherical shape.