| 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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| grafting |
graft: the act of grafting something onto something else
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| grain |
a small hard particle; "a grain of sand" foodstuff prepared from the starchy grains of cereal grasses a weight unit used for pearls or diamonds: 50 mg or 1/4 carat ingrain: thoroughly work in; "His hands were grained with dirt" 1/60 dram; equals an avoirdupois grain or 64.799 milligrams paint (a surface) to make it look like stone or wood dry seedlike fruit produced by the cereal grasses: e.g. wheat, barley, Indian corn granulate: form into grains granulate: become granular the direction or texture of fibers found in wood or leather or stone or in a woven fabric; "saw the board across the grain"
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| grand mal epilepsy |
epilepsy in which the attack involves loss of consciousness and tonic spasms of the musculature followed by generalized jerking
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