transmasc adjective 1noun 1forms 3 adjective1 •Transmasculine.[A] binder is a compression garment for your chest to flatten the chest. It's for other nonbinary or transmasc folks [...] — 2018 noun1 •(informal) A trans man or other transmasculine person.[They say things like] “I'm attracted to all genders, especially androgynous people,” or, “I am primarily interested in other transmascs.” — 2016 formstransmascs · more transmasc · most transmasc