dilution /di·lu·tion/ (di-loo´shun)
dilution (di·lōōˑ·sh
n),
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 (d -l  sh n, d -)n. 1. The act of reducing the concentration of a mixture or solution. 2. A diluted solution. |
dilution (di·lōōˑ·sh
n),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.
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