A ray or beam.
The wind.
The planet Mars.
Minerals showing characteristic cleavage.
The world; the universe.
A crystal or crystals.
Power.
Relating to, caused by, or connected with electricity.
Work; energy.
River.
Electric current.
The Earth.
Glaciers.
The Sun.
Moisture or humidity.
The rainbow; the iris.
A mineral or fossil.
A stone or stony structure.
Stone.
Stone.
Magnetism or a magnet.
A metal.
Measurement.
Cloud.
Night.
Night.
Rain; moisture.
Subatomic particles or quanta; molecular units.
Mountains.
Osmosis.
Soil or soil types.
Rocks; petroleum.
Porphyritic rocks.
Physical; physical and …
Nature; physiology.
Pressure.
Fire.
Radiation; radio waves.
Current or flow.
X-rays.
An earthquake.
The moon.
Soil.
Sound.
Spectrum.
A broadly spherical object or region.
Tectonics.
The sea.
Heat; temperature.
Friction.
A subatomic particle; an instrument or device.
Things made of a specified material or in a particular way.
Copyright © Michael Quinion 2008–. All rights reserved. Your comments are very welcome.