What does mesomorphy mean?
Mesomorphy names a physical body type characterized by a comparatively muscular, athletic, and well-proportioned build. In the traditional somatotype classification, it occupies an intermediate position between endomorphy, associated primarily with greater body fat, and ectomorphy, associated with a lean or slight frame. The term comes from the Greek roots for “middle” and “form,” reflecting mesomorphy’s position between two other body types. Although the expression may be encountered in physical anthropology, physiology, fitness, and body-composition discussions, it is not a common everyday word; “mesomorph” is more likely to describe an individual person. Mesomorphy was also historically connected with a controversial theory that proposed relationships between body type and personality. That psychological framework is not regarded as scientifically reliable, so the modern term is principally used as a descriptive label for physical build rather than as a way of inferring character or temperament.
nounMesomorphy is the constitutional trait characterized by a relatively muscular, athletic body build, classified as intermediate in the traditional somatotype system. The term is primarily used in physical anthropology, physiology, and discussions of body composition.
- The physical trait of having a relatively muscular, well-proportioned body build, intermediate between the other traditional somatotypes.
"His natural athleticism and well-proportioned build exemplify mesomorphy."
"The coach considered her mesomorphy ideal for sprinting and strength training."
"Somatotype researchers historically used mesomorphy as one of three broad classifications of body build."
The plural is grammatically possible but rarely used, because the term most often appears in the singular as a name for a body type or trait.
"The study compares the mesomorphies of trained athletes in several sports."
Once central to a celebrated theory linking body build with personality, mesomorphy survives mainly as a classification of physical body type after its psychological claims were rejected.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does mesomorphy come from?
Mesomorphy was formed from the Greek mesos, meaning “middle,” and morphē, meaning “form,” together referring to a middle form of body build. The term entered English in the twentieth century with the development of somatotype theory, which classified physical constitution into endomorphic, mesomorphic, and ectomorphic types. Its related English terms include mesomorph and mesomorphic, while endomorph and ectomorph share the same Greek element for form.
Related word forms
How mesomorphy is actually used
Mesomorphy is specialized and relatively uncommon in everyday speech, where a person is more often called a mesomorph or described as having a mesomorphic build. Its historical association with theories about personality should not be treated as scientifically established.
Easily confused with mesomorphy
Mesomorphy denotes a relatively muscular, athletic build, whereas endomorphy denotes a physique characterized primarily by a greater proportion of body fat.
Mesomorphy denotes an intermediate, muscular build, while ectomorphy denotes a lean, relatively delicate or slight body type.