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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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˌɛk təˈmɔr fɪk)

having a thin body build, roughly characterized by the relative prominence of structures developed from the embryonic ectoderm (contrasted with endomorphic, mesomorphic).
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.ectomorphic - having a build with little fat or muscle but with long limbs
lean, thin - lacking excess flesh; "you can't be too rich or too thin"; "Yon Cassius has a lean and hungry look"-Shakespeare
endomorphic, pyknic - having a squat and fleshy build; "a pyknic practical joke"
mesomorphic, muscular - having a robust muscular body-build characterized by predominance of structures (bone and muscle and connective tissue) developed from the embryonic mesodermal layer
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Being expected, the average values of the ectomorphic component are significantly lower with the handball than those of the football and basketball players (p<0.001).
"Modern players are ectomorphic, characterised by a lean, slender body, as opposed to the muscular, mesomorphic builds which were more common in the seventies and eighties.
They're ectomorphic - characterised by lean, slender bodies and not the muscular, mesomorphic builds common in the 70s and 80s.
Steps 1, 2, and 3: The response should be aggressive and rapid because 1) a high VBLC (>60 [micro]g/dL) can significantly increase encephalopathy risk in an ectomorphic child less than 5 years and 2) CDC recommends an aggressive response (CDC, 2012).
I just want to be overcome by the supple, erotic strangeness of her surrealist narratives; the chitinous sheen of her works' surfaces; her Prada-meets-Star Trek palette; and the gelatinous, ectomorphic figures.
Previous studies have reported a more ectomorphic profile in basketball players when compared to hockey players (38).
Females showed a large dispersion, predominating the mesomorphic endomorph (15%), balanced mesomorph (15%) and ectomorphic endomorph (15%) categories, while in males, the ectomorphic mesomorph category was predominant (50%).
They too noted that the ectomorphic predominance changed with the passage of 2 yrs that tended towards the endomorphic component, which is in line with the results of the present study.
the ectomorphic side of the scale and post players to be more aligned
In order to characterize the influence of the pilot body, mesomorphic (larger size) and ectomorphic (smaller size) test pilots were considered.
Dancers with higher ectomorphic component were more likely to have an injury of the foot (OR = 1.719, 95% CI: 1.081-2.899).
Ectomorphic people have an extreme thin appearance, with narrow shoulders, waist and hips, a triangular face, difficulty in gaining muscle mass and low body fat level.