problem in parsing html page

i have a problem in a parsing one html page. the link of the page is http://www.symmetricom.com/resources/glossary/telecommunications-glossary/ now if i take the node strong that contains the name of the word it works great but if i want to take the definition that is contained 开发者_如何学Cin node br it doesn't work. i use html cleaner to clean the code of web page. please help me it's very important

The description text is outside the <br> tag, <br> is line braek tag. How do you parse this HTML, and why you are cleaning code?