terminology - Term for the second letter in Sx, Dx, Rx? - English
WebMar 18, 2016 · Sorted by: 10. It seems plausible that the medical convention of using 'x' as the second letter of an abbreviation (in, for example, Dx ( diagnosis ), Sx ( symptom or surgery ), Fx ( family ), Hx ( history ), and Tx ( transplant or treatment )) comes from copying the convention of using Rx as an abbreviation of prescription.
DA: 5 PA: 87 MOZ Rank: 21