Like carbon, silicon can form a lot of complex compounds, but among its many disadvantages is an inherent instability. (science.howstuffworks.com)
Students begin to recognize and understand simple compound words, such as airplane and toothbrush, in first grade, then progress to more complex compound words. (spellingcity.com)
I decided to make my own vapor rub containing natural essential oils that contain complex compounds that not only knock out symptoms, but can also help the body heal itself. (diynatural.com)