noun, noun which may take the genitive case particle 'no'
Scientific term for the property of a material to be deformed permanently without breaking. Also used figuratively for adaptability or malleability of systems, minds, etc.
粘土は可塑性が高い素材だ。
Clay is a material with high plasticity.
脳の可塑性は年齢とともに低下する。
Brain plasticity declines with age.
柔軟性 (flexibility) is a more general term for adaptability and bendability, not necessarily implying permanent change like 可塑性.
From 可塑 (かそ, 'moldable') + 性 (せい, 'property'). 可塑 is composed of 可 (possible) and 塑 (model, mold).