Definition of "phage" [phage]

• A bacteriophage. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Another feature of the Cal Tech undergraduate education was the opportunity to take credits as reading which I did most quarters, reading the original literature in phage genetics and gene regulation."
• "A phage is a virus that only attacks other bacteria."
• "Because of their predominance, it is necessary to discriminate between the various serotypes in the course of epidemiological investigations and a fairly sophisticated technique called phage typing is used for this purpose in many countries."