in- 1

in- 1 definition - medical

in- 1 or il- or im- or ir-

prefix
Not: invertebrate. Before l, in- is usually assimilated to il-, before r to ir-, and before b, m, and p to im-.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Comments
Improve this definition.
Do you have more to add? Share your linguistic knowledge or observation.
/Register to save your comments.