a. (sb.) Of or pertaining to three months; appearing every three months, as a periodical; quarterly. b. sb. A quarterly magazine or review.
1818. Byron, Juan, I. ccxi. Magazines,… Daily, or monthly, or three monthly.
1830. Gen. P. Thompson, Exerc. (1842), I. 233. Writing in a three-monthly Review.
1846. Mrs. Gore, Eng. Char. (1852), 13. Convinced that all the weekly, monthly, and three-monthly critics cannot be in the wrong.
1886. Tupper, My Life as Author, 179. I was editor … of an extinct three monthly, the Anglo-Saxon.
