Origin of bawl Middle English baulen (found only in gerund, gerundive ) from Medieval Latin baulare, to bark and uncertain or unknown; perhaps Old Norse baula, to low like a cow; both of echoic origin, originally
A clip is what holds the ammunition and is not a feeding device like that of magazine. Clips are just metal pieces. A magazine has springs attached to it, which makes it a feeding device. As springs are not seen in a clip, it does not act as a feeding chamber. So in simple terms, if a spring is present, then it is a magazine and if no spring is present, it is a clip.
There are pro's and cons on both sides of the issue. Clip-in pedals offer a more connected feeling to the bike, the shoes are generally stiffer soled than normal shoes, and this can help with efficiency and comfort on longer rides.