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An individual having a lean, slightly muscular body build in which tissues derived from the embryonic ectoderm predominate.

ec′to·mor′phic adj.
ec′to·mor′phy n.


the condition or state of being an ectomorph, i.e., having a light, slender body structure. — ectomorphic, adj.
See also: Body, Human
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.ectomorphy - slender, weak, and lightweightectomorphy - slender, weak, and lightweight  
body type, somatotype - a category of physique
References in periodicals archive ?
Endomorphy is a measure of relative fatness, mesomorphy is a measure of relative musculo-skeletal robustness, and ectomorphy is a measure of proportionality between body weight and height (29).
From the analysis of Table 2, referring to the somatotype presented by the total number of athletes (N = 27) in the present study, the highest mean was found for the second component, mesomorphy, followed by endomorphy and ectomorphy, characterizing this group of gymnasts as mesoendomorphs.
There was a predominance of meso and ectomorphy, with prevalence of mesomorphy.
Specifically, in accordance with the formula, prominence of ectomorphy or mesomorphy was assigned as "a rating of at least three points higher .
Indeed, Cash notes that human embodiment psychologists' "theories and investigations have typically neglected boys and men" while their empirical efforts focus "more on the personal and cultural meanings of endomorphy and ectomorphy than on matters of mesomorphy" (2007, p.