Signal transduction. Does it mean to "amplify" a signal

In my book, it says the following:
"Through a cascade, an initial signal can be both amplified and distributed to cause several different responses to the target cell."

Somebody explain to me what that means.

Thanks in advance

The word "transduction" merely means to change from one type of signal to another. It is used for light receptors in the eye converting light signals to electrochemical signals, and it is used to describe when a cell receives a signal. Often, it is when there is a receptor embedded in the membrane (though not always) where a molecule from the outside will touch it, and the receptor in the membrane will trigger proteins or other molecules inside the cells to carry the signal. This is the official transduction.

The cascade mentioned is what tends to happen right after the transduction. One signal molecule will trigger another, and this will trigger another, and so on. This is the transduction cascade. However, amplification occurs with this as well. That means that one molecule can trigger 10 others, and each of those will trigger 10 more molecules, and this continues.

No, transduction doesn't mean to amplify, but this is eventually what happens.

Here is a transduction cascade without amplification: http://www.bio.miami.edu/~cmallery/150/m…
Here is showing linear versus amplified: http://www.piercenet.com/media/Signal%20…

I hope this helps :)