Definition: In a way that relates to or utilizes the heat from the Earth.

Example: The power plant generates electricity geothermally, using heat from deep underground.

Definition: A unit of measurement for explosive force that is equal to one billion tons of TNT.

Example: The explosion was measured at a force of several gigatons.

Definition: Relating to glaciers or very cold temperatures; can also describe a cold or unfriendly demeanor.

Example: The glacial winds made it difficult to enjoy the outdoor event.

Definition: A large, slow-moving mass of ice that forms from compacted snow and flows over land.

Example: The glacier carved out the valley over thousands of years.

Definition: Relating to the study of glaciers and ice sheets.

Example: The glaciological research provided important insights into climate change.

Definition: A gentle slope or incline, often found extending down from a fortification, which can also serve as a neutral area between opposing forces.

Example: The soldiers took cover behind the glacis to avoid enemy fire.

Definition: A type of sticky, bluish-gray clay found beneath the surface of certain wet soils.

Example: The farmer noticed that the gley in his fields made it difficult for crops to grow.

Definition: Relating to the whole world or all parts of something; worldwide.

Example: The global economy is affected by many factors, including trade and politics.

Definition: A chemical substance used to kill unwanted plants, especially in farming and gardening.

Example: Farmers often use glyphosate to control weeds in their fields.

Definition: A large area covered mainly with grass and few trees, often found in regions with a dry climate.

Example: The grassland is home to many species of animals and plants.