bleb /blɛb/noun 4verb 1forms 3 noun4 •A bubble, such as in paint or glass. •A large vesicle or bulla, usually containing a serous fluid. •An irregular bulge in the plasma membrane of a cell undergoing apoptosis.Figure 4.20 reveals blebs on the surface of a bacterial cell. In many instances, these blebs are released from the cell into the surrounding media. — 2005 •A bubble-like inclusion of one mineral within another.Figure 23. […] The crust is underlain by silty sand, which is loosely cemented by a meshwork of gypsum crystals and contains blebs and small nodules of white ulexite (U). — 1974 verb1 •To form, or cause the formation of, blebs.And there, while big drops bow the grassy stems, / And bleb the withering hay with pearly gems,/ Dimple the brook, and patter in the leaves, / The song or tale ah hour's restraint relieves. — 1821 formsblebbed · blebbing · blebs