microspheres

/ˈmaɪkrəˌsfɪrz/
noun
  1. Plural of microsphere; very small, round particles used in science, medicine, or manufacturing.
    • The lab ordered a new batch of microspheres for the drug delivery experiment.
    • The engineer tested different sizes of microspheres to improve the paint's texture.
    • Microspheres are often coated with special chemicals to target specific cells.
Synonyms