USAN
abbr.
United States Adopted Names (used for nonproprietary names of drugs adopted by a committee of medical professionals and drug manufacturers)
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Examples from the Web for usan
If wild things were not meant for the wilds, the god, Usan, would not have placed them there.
The Story of Geronimo|James Arthur KjelgaardEn estas, y semejantes impersonales, usan los Indios de esta lengua: Aragne nuc me; Arastap nuc me.
A Vocabulary or Phrase Book of the Mutsun Language, Spoken at the Mission of San Juan Bautista, Alta California|Father Felipe Arroyo de la Cuesta