Around 1986 John Joyce (of Bowin Cars fame), an influential Australian inventor, first learned about oxides of nitrogen (NOx) and their role in the production of smog and acid rain.
Sounding. A set of data measuring the vertical structure of an atmospheric parameter (temperature, humidity, pressure, winds, etc.) at a given time. You can either type in the word you are looking for in the box below or browse by letter. Search:
sound noun (NOISE) A2 [ C or U ] something that you can hear or that can be heard: They could hear the sound of a bell tolling in the distance. She stood completely still, not making a sound. Suddenly we heard a loud knocking sound from the engine. Sound can travel over very large distances in water.