leptosome

lepto- (“thin”) +‎ -some (“body”).

leptosome (comparative more leptosome, superlative most leptosome)

1. Narrow-bodied (in proportional to height or length).
   • 1948, Alfred Louis Kroeber, Anthropology: race, language, culture, psychology, pre-history, pp. 173–174:

     The majority of such typings are bipolar, and they amount in the last analysis to saying that there are broader-bodied and narrower-bodied individuals in every group. To put this simple and in itself harmless finding learnedly, we substitute the terms “eurysome” and “leptosome.”

• See also Thesaurus:scrawny
• slender

• eurysome

• mesosome