diagnostic diphtheria toxin
Schick test toxin
What Does 🕷️ Spider Emoji Mean?The spider emoji symbolizes the fascinating and dangerous arachnid and is associated with spookiness, witches, Halloween, and Goth culture.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.