pəˈräsəd.ē, pōˈ-, pȯˈ-, -sətē, -i noun
( -es )
Etymology: Medieval Latin porositat-, porositas, from porosus porous + Latin -itat-, -itas -ity
1. : the quality or state of being porous
led to porosity and cracking in the weld zone — Steel
specifically : the ratio of the volume of interstices of a material to the volume of its mass
the thimble has been made in two porosities — Journal of Research
2. : something that is porous : a porous part or area