Editing 1973 in science (section)

==Physiology and medicine==
* August – Production of [[monoclonal antibodies]] involving human–mouse hybrid cells is first described by [[Jerrold Schwaber]].<ref>{{cite journal|author=Schwaber, J.|author2=Cohen, E. P.|title=Human x mouse somatic cell hybrid clone secreting immunoglobulins of both parental types|journal=[[Nature (journal)|Nature]]|volume=244|issue=5416|pages=444–7|year=1973|pmid=4200460|doi=10.1038/244444a0|s2cid=4171375}}</ref>
* The term "[[dendritic cell]]" is coined by [[Ralph M. Steinman]] working with [[Zanvil A. Cohn]].<ref>{{cite journal|last1=Steinman|first1=R. M.|last2=Cohn|first2=Z. A.|title=Identification of a Novel Cell Type in Peripheral Lymphoid Organs of Mice: I. Morphology, Quantitation, Tissue Distribution|journal=Journal of Experimental Medicine|volume=137|issue=5|pages=1142–62|year=1973|pmid=4573839|doi=10.1084/jem.137.5.1142|pmc=2139237}}</ref>
* The term "Norrmalmstorgssyndromet", translated as [[Stockholm syndrome]], is coined by [[Nils Bejerot]].