Petri dish


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Petri dish

a shallow circular flat-bottomed dish, often with a fitting cover, used in laboratories, esp for producing cultures of microorganisms

petri dish

[′pē·trē ‚dish]
(microbiology)
A shallow glass or plastic dish with a loosely fitting overlapping cover used for bacterial plate cultures and plant and animal tissue cultures.
References in periodicals archive ?
With our light-scattering method, it takes less than five minutes to identify harmful organisms after they have grown in a petri dish.
However, the weight losses of the petri dish contents over 7 weeks of fungal exposure were highly variable with no statistically significant differences between the treatments and the controls.
Bacteria in darker regions of the Petri dish produced a pigment which made them appear dark, while those in the lighted regions did not, and so appeared light.
Unable to conceive a child on their own, they bad decided to try in vitro fertilization, a procedure in which a woman's eggs and a man's sperm are combined in a petri dish before being implanted in the mother's uterus.
In their grainy minimalism they look at once like slogans sprayed on a wall and like something at the bottom of a petri dish.
Then, a full 20 years later, the building and the blocks surrounding it were shut down for hours after the B'nai B'rith mail room received a package containing a petri dish and a note suggesting the dish contained anthrax.
Place 5 tadpoles into each petri dish with 20mL of HGH.
About four days after fertilization, scientists extract the cells from the blastocyst (a hollow ball of cells holding them), and isolate them in a petri dish.
In other words, for Hatch and Mack, location in a petri dish makes a lot of difference.
2] on the bacteria were observed, and the intensity of the bacterial growth in each petri dish was rated on a zero to three scale, with three being the most intense and zero being no growth at all.
But the same hypercompetitive petri dish that spawned the technological creativity and innovation behind the New Economy has produced a win-at-all-cost mentality with increasingly dark implications for the Valleyite's professional and personal life.
The NEW Scienceware(r) Easyplate(tm) Petri Dish Racking System from Bel-Art Products, allows for increased efficiency when transporting, organizing, incubating and handling petri dishes.