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ther·mo·sphere
 thermosphere
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- pronunciation:
- thur
m
sfIr
- features:
- Word Parts
| part of speech: |
noun |
| definition: |
the extreme outer edge of the earth's atmosphere, within which temperature increases steadily with altitude.
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The word thermosphere
contains the following parts:
spher, -sphere
Greek
root
that means ball
  Example words:
atmosphere, atmospherics, bathysphere, biosphere, celestial sphere, chromosphere, exosphere, hemisphere, hydrosphere, ionosphere, lithosphere, magnetosphere, mesosphere, ozonosphere, photosphere, planisphere, spheroid, stratosphere, thermosphere
therm, thermo
Greek
root
that means heat, temperature
Example words:
diathermy, endothermic, eurytherm, exothermic, geothermal, hypothermia, isotherm, isothermal, stenotherm, thermal, thermic, thermistor, thermocline, thermocouple, thermodynamics, thermoelectricity, thermograph, thermojunction, thermometer, thermonuclear, thermoplastic, thermoregulation, thermos, thermosetting, thermosphere, thermostat, thermotropism
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