MTF noun 4adjective 1forms 2 noun4 •A male-to-female person.Hormone-related cancer in transgender persons is very rare (there are case reports of breast cancer in MTFs). — 2008 •Initialism of multilateral trading facility. •Initialism of mean or median time to failure. •Initialism of magnetized target fusion. adjective1 •Initialism of male-to-female (transgender or transsexual). formsMTFs · MtFs