ammonio-


a combining form representing ammonia or ammonium in compound words: ammonioferric.

Also especially before a vowel, ammoni-.
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ammonio- in Medicine

ammonio-

pref.

Containing an ammonium group:ammoniocupric sulfate.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.