Dictionary.com
definitions

noso-

  1. a combining form meaning “disease,” used in the formation of compound words: nosology.
Also especially before a vowel, nos-.

Origin of noso-

combining form representing Greek nósos disease, sickness, malady
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for noso-

noso-

before a vowel nos-

combining form
  1. diseasenosology

Word Origin for noso-

from Greek nosos
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for noso-

word-forming element meaning "disease," from comb. form of Greek nosos "disease, sickness, malady," of unknown origin.

Online Etymology Dictionary, © 2010 Douglas Harper
noso- in Medicine

noso-

pref.
  1. Disease:nosology.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.