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ectomorph, endomorph, and mesomorph

[(ek-tuh- mawrf)]

A person whose body structure is dominated by the outer skin and the nervous system. Ectomorphs are thin and have a large skin surface relative to their weight. Endomorphs are heavy and flabby, and mesomorphs are sturdy and strong, with highly developed bones and muscles.

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The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.