"球形突出物" can be translated as "spherical protrusion" in English.
"Spherical" means shaped like a sphere, which accurately describes the round, three-dimensional form of the object.
"Protrusion" refers to something that sticks out or projects from a surface, fitting the description of a "突出物" (protruding object).
This term is commonly used in technical, medical, or engineering contexts to describe rounded, projecting features.