What does mesomorphic mean?
Mesomorphic is an adjective describing a body type traditionally regarded as intermediate between the slender ectomorph and the heavier endomorph. Its characteristic build is relatively muscular, athletic, and well proportioned, with a lower level of body fat than is traditionally associated with the endomorphic type. The word is especially common in fitness, bodybuilding, physical-appearance, and somatotype contexts, where people discuss an ectomorph, mesomorph, or endomorph as three broad body categories. Although the term can be useful for describing an observable build, such categories simplify the continuous variation in human anatomy and should not be treated as definitive measures of health, fitness, or athletic ability. In less technical contexts, “mesomorphic” often functions simply as a polished synonym for athletic-looking or muscular. The related noun “mesomorph” denotes either a person with this build or the body type itself.
adjectiveRelating to a mesomorph, a person regarded as having a relatively muscular, athletic, and well-proportioned build. In the traditional somatotype system, it is the intermediate body type, positioned between the lean ectomorph and the more fat-prone endomorph.
- Having the relatively muscular, athletic, and well-proportioned build traditionally classified as mesomorphic.
"The athlete had a distinctly mesomorphic build, with broad shoulders and a well-defined muscular frame."
"His mesomorphic physique made the fitted jacket look especially well suited to him."
"The study used photographs to assess whether participants had an ectomorphic, mesomorphic, or endomorphic build."
Mesomorphic literally means “middle-shaped,” naming the traditional body type considered intermediate between the lean ectomorph and the rounder endomorph.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does mesomorphic come from?
Mesomorphic was formed in English from “mesomorph” plus the adjective suffix “-ic.” The underlying word combines the Greek mesos, meaning “middle,” with morphē, meaning “form,” reflecting the traditional placement of the mesomorphic body type between the other two somatotypes. Its relatives include the noun “mesomorph” and the abstract noun “mesomorphy,” both preserving the same combination of “middle” and “form.”
Related word forms
How mesomorphic is actually used
This term is most common in discussions of physical build, fitness, body typing, and the traditional somatotype system. In everyday use, it usually conveys a lean, muscular, or athletic appearance, but it can sound technical or evaluative when applied directly to a person.
Easily confused with mesomorphic
A mesomorph is the person or body type described as mesomorphic; mesomorphic is the adjective describing that build.
A mesomorph is traditionally characterized by a relatively muscular, balanced build, whereas an ectomorph is characterized as comparatively slender and lightly built.