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 gallium arsenide:GaAs. Used in microwave circuits, among other things.
gall bladder:A muscular sac present i most vertebrates, opening into the bile duct.
gallstones:A stone formed in the gall bladder or bile passages.
gasification:Changing of something into a gas.
gene sequencing:Sequencing DNA is determining the actual order of the base pairs of adenine and thymine or guanine and cytosine on each of the strands of the double helix of DNA.
gene therapy:Medical treatment by changing of DNA.
genetic engineering:The planned changing of DNA.
genetics:The study of the nature of DNA and its role in passing traits from generation to generation.
genus:The usual major subdivision of a family or subfamily into the classification of plants and animals, usually consisting of more than one species.
geothermal:A form of electricity generation involving heating up water using hot spots in the Earth's crust.
geranium:(genus: Geranium or Pelargonium) Cultivated plant having showy, usually red, flowers, and/or fragrant leaves.
germination:To develop from a seed, bulb, spore, or the like into a plant or individual.
ginger:(genus: Zingiber, particularly Zingiber officinale) A plant having a large, spicy root, used in cooking and herbal remedies.
ginkgo:(Ginkgo biloba) A large tree, native to China, with fan-shaped leaves, fleshy fruit, and edible nuts.
ginseng:Panax ginseng or Panax quinquefolium. A plant with an aromatic root used in Chinese herbal remedies.
glandular tissue:Tissue that produces a substance in a living creature.
glycol:(Glycerin alcohol, ethylene glycol, ethylene alcohol: CH2OHCH2OH) Colourless, sweet alcohol, used as an antifreeze and a solvent. Poisonous, much more than ethanol.
goldenrod:(genus: Solidago) Plant with many small, yellow flowers.
goldenseal:(Hydrastis canadensis) Plant related to the buttercup, with a thick, yellow root used in folk medicine.
gram:A metric unit of mass, equal to 15.432 grains.
guanine:One of four nucleotides which are the primary building blocks for DNA.
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