MTP noun4 •Initialism of metatarsophalangeal joint.Every time you push off and hyperextend the toe, which happens when doing something as simple as taking a step or more strenuous like cutting and jumping, the MTP joint is involved. — 2022 •Initialism of medial tibial plateau. •Initialism of microsomal triglyceride transfer protein. •Initialism of major third party. formsMTPs