less.css sharing variables across files

I am using less.css to simplify my css styling. I'd like to declare a varaible in one less file and share its usage across my many less files. Is this possible? For example:

english.less

@languageFloat: left;

chart.less

div#footer a.web
{   
    display: block;
    float: @languageFloat;
    color: #cccccc;
    margin-right: 10px;
}