rns

/R N Z/
noun
  1. 1

    Abbreviation of reactive nitrogen species.

  2. 2

    Abbreviation of Raine syndrome. [A rare autosomal-recessive congenital disorder characterized by craniofacial anomalies including microcephaly, low-set ears, osteosclerosis, cleft palate, gum hyperplasia, a hypoplastic nose, and eye proptosis.]