英和和英

発音

• 韻: -eɪʃən

名詞

gracilization (uncountable)

1. (anthropology) A reduction of bone mass as the result of evolution.
   • 2002, Peter S. Ungar, Mark Franklyn Teaford, Human Diet: Its Origin and Evolution, →ISBN, page 28:

     The last ten thousand years have witnessed a gracilization of the human cranium — and masticatory complex, in particular.

   • 2025 November 27, Tibi Puiu, “This Is Why Modern Human Faces Look So Different From Neanderthals”, in ZME Science‎, archived from the original on 23 February 2026:

     This early slowdown is one piece of a broader evolutionary trend known as gracilization, the tendency for modern humans to become more delicate in form. Our bones are thinner, our muscles smaller, and our faces flatter than those of earlier hominins.