POROUS
porous, poriferous
(adjective) full of pores or vessels or holes
holey, porous
(adjective) allowing passage in and out; “our unfenced and largely unpoliced border inevitably has been very porous”
porous
(adjective) able to absorb fluids; “the partly porous walls of our digestive system”; “compacting the soil to make it less porous”
Source: WordNet® 3.1
Etymology
Adjective
porous (comparative more porous, superlative most porous)
Full of tiny pores that allow fluids or gasses to pass through.
(figurative) With many gaps.
(figurative, by extension) full of loopholes
Synonyms
• (full of holes): permeable
Source: Wiktionary
Por"ous, a. Etym: [Cf. F. poreux. See Pore, n.]
Definition: Full of pores; having interstices in the skin or in the
substance of the body; having spiracles or passages for fluids;
permeable by liquids; as, a porous skin; porous wood. "The veins of
porous earth." Milton.
Source: Webster’s Unabridged Dictionary 1913 Edition