Porosity is defined as being full of tiny holes that water or air can get through.(noun)
An example of porosity is the quality of a sponge.
See porosity in Webster's New World College Dictionary
noun pl. porosities
Origin: ME porositee < ML porositas: see porous + -ity
See porosity in American Heritage Dictionary 4
noun pl. po·ros·i·ties
Origin: Middle English porosite
Origin: , from Old French
Origin: , from Medieval Latin porōsitās
Origin: , from porōsus, porous; see porous.
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