noun, noun which may take the genitive case particle 'no'
Technical term used in engineering and materials science to describe resistance to deformation. Also used in a no-adjective form (剛性の).
This material has high rigidity, so it is suitable for construction.
剛性の高いフレームを採用した。
We adopted a frame with high stiffness.
Compound of 剛 (ごう, 'sturdy, firm') and 性 (せい, 'property, nature'). The reading ごうせい follows standard on'yomi.