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Definition of ectomorph noun from the Oxford Advanced Learner's Dictionary

ectomorph

noun

/ˈektəʊmɔːf/

/ˈektəʊmɔːrf/

(biology)

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a person whose natural body shape is thin compare endomorph, mesomorphTopics Appearancec2
Word Origin1940s: ecto- from ectodermal (being the layer of the embryo giving rise to physical characteristics which predominate) + -morph.

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See ectomorph in the Oxford Advanced American Dictionary

Check pronunciation: ectomorph

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noun

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C1

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