Subscriber Login

  • This account has no valid subscription for this site.

Forgotten your password?

Show Summary Details
Page of

Eponyms and Words Derived From Proper Nouns 

Eponyms and Words Derived From Proper Nouns


Brenda Gregoline

Page of

PRINTED FROM AMA MANUAL OF STYLE ONLINE ( © American Medical Association, 2009. All Rights Reserved. Under the terms of the license agreement, an individual user may print out a PDF of a single chapter of a title in AMA Manual of Style Online for personal use (for details see Privacy Policy). 

Subscriber: null; date: 26 October 2016

Eponyms and Words Derived From Proper Nouns

With eponyms, capitalize the proper name but not the common nouns that follow it.

Down syndrome

Trendelenburg position

Rose-Waaler test

Wada test

Most common words derived from proper nouns are not capitalized. In general, follow the current edition of Merriam-Webster’s Collegiate Dictionary or Dorland’s Illustrated Medical Dictionary (for medical terms).

arabic numerals


brussels sprouts



roman numerals



india ink

Note: JAMA and the Archives Journals do not capitalize arabic and roman when referring to numerals.

Previous | Next