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lymphoblast vs. lymphocyte

[lim-fuh-blast] / ˈlɪm fəˌblæst /

noun

Cell Biology.
  1. a large, metabolically active lymphocyte shortly before it enters into mitosis.

[lim-fuh-sahyt] / ˈlɪm fəˌsaɪt /

noun

Anatomy.
  1. a type of white blood cell having a large, spherical nucleus surrounded by a thin layer of nongranular cytoplasm.