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gear a part of a machine that causes another part to move because of teeth which connect the two moving parts. [4 definitions]
gearshift a lever used to change gears in a car, truck, or other motor vehicle.
gear stick the British word for the lever used to change gears in a car, truck, or other motor vehicle. Gear stick has the same meaning as gearshift.
gear up to make preparations; get ready for.
gecko a small lizard with soft skin that eats insects. The gecko has a short body and large head and can climb walls and trees. It is found in tropical areas.
geese plural of goose.
Geiger counter an instrument used to find and measure radioactivity.
gel a chemical mixture that does not separate and that looks and feels like jelly. [2 definitions]
gelatin an animal protein that is used in glue, on film, and for making things like jelly. [2 definitions]
gem a precious stone that has been cut and polished, or a pearl of high quality; jewel. [2 definitions]
Gemini a constellation located between Taurus and Cancer. Gemini is also called the Twins. [3 definitions]
gene a tiny section of a chromosome. A gene causes a particular characteristic, such as eye color or hair color, to be passed on from parent to offspring.
genera a plural of genus.
general relating to all or most of something or of some group; not limited to any particular thing or member. [4 definitions]
generalize to come to a broad idea or rule about something after considering particular facts. [3 definitions]
generally for the most part. [2 definitions]
generate to bring into being or to produce.
generation the entire group of people who were born around the same time. [3 definitions]
generator a machine or device that produces electricity or other energy. [2 definitions]
generic applying to all members of a particular group. [2 definitions]
generosity the condition of being willing and ready to give.