Ext. and Extr.

Also known as: Abbreviations in prescriptions, Ext., Extr.

Historical document, translated for reference. It reflects medical knowledge of the 1920s–30s and is not medical advice.

This entry defines the abbreviations 'Ext.' and 'Extr.' as they were used in medical prescriptions during the early 20th century. It explains their Latin origins and intended meanings in a clinical context.

Encyclopedia entry (1928–1936)

EXT., an abbreviation used in a prescription, from the Latin word extende—to spread, or externum—external. EXTR., an abbreviation of the Latin word extractum—extract, used in a prescription.

Cite this page

“Ext. and Extr..” Soviet Medical Encyclopedia. English translation of Bolshaya Meditsinskaya Entsiklopediya, 1st ed. (Moscow, 1928–1936), ed. N. A. Semashko. https://sovietmedicalencyclopedia.pages.dev/article/ext-and-extr/