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a method of finding out which different gases or liquids are included in a mixture by passing it through or over substances that absorb the different parts at different rates
a double-blind test involves two groups of people, only one of which is really being tested. None of the people in the two groups and none of the scientists performing the test knows which people belong to each group.
the result of a medical, chemical, or biological test that shows something such as a particular substance exists but is incorrect
medical a small amount of blood, urine, or another liquid taken from your body so that it can be examined
giving birth to a baby in the presence of a large number of close relatives and/or friendsBuzzWord Article
a condition when a person cannot see clearly objects that are close; long sightednessadd a word