- a shallow, circular, glass or plastic dish with a loose-fitting cover over the top and sides, used for culturing bacteria and other microorganisms.
Origin of petri dish
1890–95; named after J. R. Petri (died 1921), German bacteriologist
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for petri dish
The colonies of bacteria shown in the petri-dish test made of the washings from wall paper further supports these findings.Paint Technology and Tests
Henry A. Gardner
- a shallow circular flat-bottomed dish, often with a fitting cover, used in laboratories, esp for producing cultures of microorganisms
C19: named after J. R. Petri (1852–1921), German bacteriologist
Word Origin and History for petri dish
1892, named for German bacteriologist Julius Petri (1852-1922), who first devised it c.1887.
Online Etymology Dictionary, © 2010 Douglas Harper
- A shallow circular dish with a loose-fitting cover, used to culture bacteria or other microorganisms.
- A shallow, circular dish with a loose cover, usually made of transparent glass or plastic and used to grow cultures of microorganisms. The petri dish is named after German bacteriologist Julius Richard Petri (1852-1921).
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.