| Gram's method |
a staining technique used to classify bacteria; bacteria are stained with gentian violet and then treated with Gram's solution; after being decolorized with alcohol and treated with safranine and washed in water, those that retain the gentian violet are Gram-positive and those that do not retain it are Gram-negative
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| Gram's solution |
a solution used in staining bacteria by Gram's method; consists of one part iodine and two parts potassium iodide and 300 parts water
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| Gram's stain |
Gram's method: a staining technique used to classify bacteria; bacteria are stained with gentian violet and then treated with Gram's solution; after being decolorized with alcohol and treated with safranine and washed in water, those that retain the gentian violet are Gram-positive and those that do not retain it are Gram-negative
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| gram |
a metric unit of weight equal to one thousandth of a kilogram Danish physician and bacteriologist who developed a method of staining bacteria to distinguish among them (1853-1938)
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| gram calorie |
calorie: unit of heat defined as the quantity of heat required to raise the temperature of 1 gram of water by 1 degree centigrade at atmospheric pressure
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