What does 骨格 mean?
骨格 is a Japanese noun meaning “bone structure” in English. It can also be translated as “framework” depending on context. It is written as 骨格 in kanji, こっかく in hiragana, and kokkaku in romaji. This word is part of JLPT N3 vocabulary.
Example sentence
骨格たくましい体格なので彼は柔道家でとおっている。
With his muscular constitution he passes for a judoist.