topical UK /ˈtɒp.ɪ.kəl/US /ˈtɑ.pɪ.kəl/adjective 6noun 4forms 3 adjective6 •Relating to a particular topic or subject.The book is divided into topical chapters. •Relating to a topic or subject of current interest.Fair trade has become quite a topical issue. •Local to a particular place. •Applied to a localized part of the body. •Applied externally (to the surface of the skin or eye).Terbinafine is available in 250 mg tablets and in a topical 1% ointment. There is no parenteral form available. — 2003 •Arranged according to topic or theme; thematic. noun4 •A substance, especially a medication, applied externally (to the surface of the skin or eye). •A topical anaesthetic. •A joke dealing with current events or topical subjects.You can’t do a show at an audience – you have to do a show with an audience and structure the act so that you start with the “hello” gags, then the topicals, then the surreal stuff. — 2017 •A postage stamp depicting a particular theme or subject (such as birds or trains), potentially sought out by topical stamp collectors.beautiful Pictorials, topicals, commemoratives, airmails. Introductory selection 40% discount. Ralph Rice, 15 Longlane, West Hartford 7, Conn. — 1956 formstopicals · more topical · most topical