«The 'baryon' is the collective name for the members of the nucleon family. This name is due to Pais. See ref. (6).»
J. Michael Shull, The Baryon Census in a Multiphase Intergalactic Medium: 30% of the Baryons May Still be Missing, vol. 759, n. 1, The Astrophysical Journal, 2012, DOI:10.1088/0004-637X/759/1/23.
J.-P. Macquart, A census of baryons in the Universe from localized fast radio bursts, vol. 581, Nature, 2020, pp. 391-395, DOI:10.1038/s41586-020-2300-2.