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Automatic
working by itself with little or no direct human control.
Graphite
a gray, crystalline, allotropic form of carbon that occurs as a mineral in some rocks and can be made from coke. It is used as a solid lubricant, in pencils, and as a moderator in nuclear reactors
Biosphere
the regions of the surface, atmosphere, and hydrosphere of the earth (or analogous parts of other planets) occupied by living organisms
Homograph
each of two or more words spelled the same but not necessarily pronounced the same and having different meanings and origins
Geometry
the branch of mathematics concerned with the properties and relations of points, lines, surfaces, solids, and higher dimensional analogs
Biodegradable
capable of being decomposed by bacteria or other living organisms
Thermometer
an instrument for measuring and indicating temperature, typically one consisting of a narrow, hermetically sealed glass tube marked with graduations and having at one end a bulb containing mercury or alcohol that expands and contracts in the tube with hea
Autograph
a signature, especially that of a celebrity written as a memento for an admirer
Biology
the study of living organisms, divided into many specialized fields that cover their morphology, physiology, anatomy, behavior, origin, and distribution
Speedometer
an instrument on a vehicle's dashboard indicating its speed
Geothermal
of, relating to, or produced by the internal heat of the earth.
Bionic
having artificial body parts, especially electromechanical ones.
Cartographer
a person who makes maps
Barometer
an insturument measuring atmospheric pressure, used especially in forecasting the weather and determining altitude
Automobile
a road vehicle, typically with four wheels, powered by an internal combustion engine or electric motor and able to carry a small number of people.
Antibiotics
a medicine (such as penicillin or its derivatives) that inhibits the growth of or destroys microorganisms
Geology
he science that deals with the earth's physical structure and substance, its history, and the processes that act on it
Thermostat
a device that automatically regulates temperature, or that activates a device when the temperature reaches a certain point
Geode
a small cavity in rock lined with crystals or other mineral matter.
Odometer
an instrument for measuring the distance traveled by a vehicle
Epigraph
an inscription on a building, statue, or coin.
Autobiography
an account of a person's life written by that person.
Biography
an account of someone's life written by someone else.
Geography
the study of the physical features of the earth and its atmosphere, and of human activity as it affects and is affected by these, including the distribution of populations and resources, land use, and industries.