Quarterly means once a quarter (i.e. four times per year). The term is particularly used to indicate periodicals. This article is about the magazine as a published medium. ...
Many scientific and/or official publications appear on a quarterly basis: To publish is to make publicly known, and in reference to text and images, it can mean distributing paper copies to the public, or putting the content on a website. ...
Resulting from this "scientific"/"official" connotation, using the name quarterly in the name of a magazine gives it a somewhat more uptight allure, as successfully exploited by e.g.: Congressional Quarterly (CQ) produces a number of publications that report primarily on the United States Congress. ... Political Science Quarterly (PSQ) is an American scholarly journal covering government, politics and policy, published continuously since 1886. ... A collection of magazines A magazine is a periodical publication containing a variety of articles on various subjects. ...
Gentlemen's Quarterly (even after it had become a monthly magazine, while still preserving a more "upscale" and "refined" perception than other men's magazines).