Can somebody explain what the word glamorous means? 

TheFreeDictionary.com

Adj.1.glamorous - having an air of allure, romance and excitement; "glamorous movie stars"

The original meaning of the word glamour was the act of casting a spell over someone. The modern meaning of the word relates to fascination, charisma, beauty or sexual attraction. A person, or their lifestyle, can be described as glamourous. The alternative spelling glamor is little-used, even in America. In Christopher Priest's 1984 fantasy novel,The Glamour, the innate ability to turn one's self invisible is to possess the glamour.

also see MM thread on glamour
https://www.modelmayhem.com/posts.php?thread_id=39330

MM definition of the word glamour from the photographer's point of view: dissapointment, not nude, not completely nude, most important parts covered.