noun, noun which may take the genitive case particle 'no'
Medical term referring to the ability of cells, tissues, or organisms to move spontaneously or actively. Often used in contexts like sperm motility or gastrointestinal motility.
When sperm motility decreases, fertilization becomes difficult.
この薬は消化管の能動性を改善する効果がある。
This drug has the effect of improving gastrointestinal motility.
Compound of 能動 (nōdō, 'active') + 性 (-sei, '-ness, -ity'). The term is a modern medical coinage, likely calqued from Western medical terminology.