Endomorph/ˈendəʊmɔːrf/ Definition 1 of 3Pro Tip 1/2Body Type Context Used to describe body shapes in health, fitness, and fashion contexts. As an endomorph, he chooses workouts tailored for his body type. Pro Tip 2/2Not Insulting Although describing body size, 'endomorph' is technical and not meant to offend. Her endomorph frame makes her a strong swimmer.