dilution

(redirected from limit dilution)
Also found in: Dictionary, Thesaurus, Financial, Encyclopedia.

dilution

 [di-loo´shun]
1. reduction of concentration of an active substance by admixture of a neutral agent.
2. a substance that has undergone such a process.
serial dilution a set of dilutions in a mathematical sequence. In microbiological technique, serial dilutions are used to obtain a culture plate that yields a countable number of separate colonies. From this, a calculation of viable cells in the original suspension can be made, as a colony picked for pure culture.

di·lu·tion

(dī-lū'shŭn),
1. The act of being diluted.
2. A diluted solution or mixture.
3. In microbiologic techniques, a method for counting the number of viable cells in a suspension; a sample is diluted to the point where an aliquot, when plated, yields a countable number of separate colonies.

dilution

/di·lu·tion/ (di-loo´shun)
1. reduction of concentration of an active substance by admixture of a neutral agent.
2. a substance that has undergone dilution.
3. in homeopathy, the diffusion of a given quantity of a medicinal agent in ten or one hundred times the same quantity of water.dilu´tional

serial dilution  a set of dilutions in a mathematical sequence, as to obtain a culture plate with a countable number of separate colonies.

di·lu·tion

(di-lū'shŭn)
1. The act of being diluted.
2. A diluted solution or mixture.
3. microbiology A method for counting the number of viable cells in a suspension; a sample is diluted to the point at which an aliquot, when plated, yields a countable number of separate colonies.

dilution (di·lōōˑ·shn),

n decreasing the concentration; for essential oils used in aromatherapy, the dilution range is between 1% and 5%.
dilutions, ultra-high,
n.pl in homeo-pathy, solutions of substances that have been repeatedly agitated and diluted.

dilution

1. reduction of concentration of an active substance by admixture of a neutral agent.
2. a substance that has undergone dilution.

limit dilution
a method of obtaining a pure culture of bacteria or virus by subculturing from the highest dilution in which the organism is demonstrably present.
serial dilution
1. the progressive dilution of a substance or infectious agent in a series of tubes or wells in a tray in predetermined ratios, e.g. 2-fold or 10-fold dilution steps.
2. a method of obtaining a pure bacterial culture by rapid transfer of a small amount of material from one nutrient medium to a succeeding one of the same volume.
References in periodicals archive ?
Further, in order to limit dilution, Brookline has entered into a standby agreement with Noramco Mining Corporation whereby Noramco will provide Brookline up to an additional CDN $2.
This resolution is intended to reflect the commitment of FullCircle's management and Board of Directors to limit dilution and build value for our current and future shareholders," commented Alec Stone, Chairman of the Board at FullCircle Registry, Inc.
We hope and expect that this will limit dilution to our shareholders as the Company moves forward.