nondiffusible
/ˌnɑndɪˈfjuːzəbəl/
adjective
- Not able to spread or be dispersed through a substance (such as a liquid or gas).
- Some large molecules are nondiffusible and cannot pass through cell membranes.
- The nondiffusible dye stayed in one spot instead of spreading through the water.
- The scientist noted that the gas was nondiffusible in the dense liquid.
Antonyms