Dictionary.com

pacifarin

[ pə-sĭfər-ĭn ]
Save This Word!

n.
Any of various bacterial products that, introduced in small amounts, protect an organism from an infection or disease without killing the infectious agent.
QUIZ
SHALL WE PLAY A "SHALL" VS. "SHOULD" CHALLENGE?
Should you take this quiz on “shall” versus “should”? It should prove to be a quick challenge!
Question 1 of 6
Which form is used to state an obligation or duty someone has?
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
FEEDBACK